diff --git a/Pipfile.lock b/Pipfile.lock
index fd454f6f..2cf47dcc 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "e424765acd32453d13c35cade0b4d0cb57cac5742ac020f32352411f15df71c5"
+            "sha256": "53a2048f5dc853a0ac2d565164c23dcdb2df802e055c1530864bfc8390af3c3e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -44,6 +44,7 @@
                 "sha256:1d936da41ee06216d89fdc7ead1ee9a5da2811a8787515a976b646e110c3f622",
                 "sha256:e4ef42e82b0b493c5849eed98b5ab49d6767caf982127e9a33167f1153b36cc5"
             ],
+            "markers": "python_version != '3.3.*' and python_version >= '2.7' and python_version != '3.2.*' and python_version != '3.1.*' and python_version != '3.0.*'",
             "version": "==2018.5"
         },
         "redis": {
@@ -120,10 +121,10 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:ae61ddd0290963f4cf3bd74e6dffce807466bfe25438b2b3598471a1ce40a635",
-                "sha256:f447b5c8b7bd5cba229fb73890ea8088380c8c37ff33417c29a53a553f857419"
+                "sha256:a8d8c7fe34e34e868426b9bafce852c355a3951eef60bc831b2ed541558f8d37",
+                "sha256:e722228b5259ce8c7cbf75f3b0ee8b483cfbd4df01167474a84087d1aeade22c"
             ],
-            "version": "==2.0.0.dev3"
+            "version": "==2.0.0.dev4"
         },
         "atomicwrites": {
             "hashes": [
@@ -146,13 +147,21 @@
             ],
             "version": "==0.1.0"
         },
-        "black": {
+        "bandit": {
             "hashes": [
-                "sha256:479cc8b3455a75b5b289276b5f47fd2bb412f2f369292989c12b891264758b5c",
-                "sha256:fe3b7ac846f2a7c91d926782184826c57d2be283c57f0d6b37b85496eb5469ff"
+                "sha256:cb977045497f83ec3a02616973ab845c829cdab8144ce2e757fe031104a9abd4",
+                "sha256:de4cc19d6ba32d6f542c6a1ddadb4404571347d83ef1ed1e7afb7d0b38e0c25b"
             ],
             "index": "pypi",
-            "version": "==18.6b3"
+            "version": "==1.4.0"
+        },
+        "black": {
+            "hashes": [
+                "sha256:22158b89c1a6b4eb333a1e65e791a3f8b998cf3b11ae094adb2570f31f769a44",
+                "sha256:4b475bbd528acce094c503a3d2dbc2d05a4075f6d0ef7d9e7514518e14cc5191"
+            ],
+            "index": "pypi",
+            "version": "==18.6b4"
         },
         "click": {
             "hashes": [
@@ -168,6 +177,20 @@
             ],
             "version": "==4.3.0"
         },
+        "gitdb2": {
+            "hashes": [
+                "sha256:b60e29d4533e5e25bb50b7678bbc187c8f6bcff1344b4f293b2ba55c85795f09",
+                "sha256:cf9a4b68e8c4da8d42e48728c944ff7af2d8c9db303ac1ab32eac37aa4194b0e"
+            ],
+            "version": "==2.0.3"
+        },
+        "gitpython": {
+            "hashes": [
+                "sha256:1ec4c44846cf76a1e55769560673a97731849c9d05401e035e607495f10db959",
+                "sha256:b60b045cf64a321e5b620debb49890099fa6c7be6dfb7fb249027e5d34227301"
+            ],
+            "version": "==2.1.10"
+        },
         "ipdb": {
             "hashes": [
                 "sha256:7081c65ed7bfe7737f83fa4213ca8afd9617b42ff6b3f1daf9a3419839a2a00a"
@@ -196,14 +219,15 @@
                 "sha256:b9c40e9750f3d77e6e4d441d8b0266cf555e7cdabdcff33c4fd06366ca761ef8",
                 "sha256:ec9ef8f4a9bc6f71eec99e1806bfa2de401650d996c59330782b89a5555c1497"
             ],
+            "markers": "python_version != '3.3.*' and python_version >= '2.7' and python_version != '3.2.*' and python_version != '3.1.*' and python_version != '3.0.*'",
             "version": "==4.3.4"
         },
         "jedi": {
             "hashes": [
-                "sha256:1972f694c6bc66a2fac8718299e2ab73011d653a6d8059790c3476d2353b99ad",
-                "sha256:5861f6dc0c16e024cbb0044999f9cf8013b292c05f287df06d3d991a87a4eb89"
+                "sha256:b409ed0f6913a701ed474a614a3bb46e6953639033e31f769ca7581da5bd1ec1",
+                "sha256:c254b135fb39ad76e78d4d8f92765ebc9bf92cbc76f49e97ade1d5f5121e1f6f"
             ],
-            "version": "==0.12.0"
+            "version": "==0.12.1"
         },
         "lazy-object-proxy": {
             "hashes": [
@@ -256,10 +280,17 @@
         },
         "parso": {
             "hashes": [
-                "sha256:cdef26e8adc10d589f3ec4eb444bd0a29f3f1eb6d72a4292ab8afcb9d68976a6",
-                "sha256:f0604a40b96e062b0fd99cf134cc2d5cdf66939d0902f8267d938b0d5b26707f"
+                "sha256:8105449d86d858e53ce3e0044ede9dd3a395b1c9716c696af8aa3787158ab806",
+                "sha256:d250235e52e8f9fc5a80cc2a5f804c9fefd886b2e67a2b1099cf085f403f8e33"
             ],
-            "version": "==0.2.1"
+            "version": "==0.3.0"
+        },
+        "pbr": {
+            "hashes": [
+                "sha256:4f2b11d95917af76e936811be8361b2b19616e5ef3b55956a429ec7864378e0c",
+                "sha256:e0f23b61ec42473723b2fec2f33fb12558ff221ee551962f01dd4de9053c2055"
+            ],
+            "version": "==4.1.0"
         },
         "pexpect": {
             "hashes": [
@@ -282,6 +313,7 @@
                 "sha256:d345c8fe681115900d6da8d048ba67c25df42973bda370783cd58826442dcd7c",
                 "sha256:e160a7fcf25762bb60efc7e171d4497ff1d8d2d75a3d0df7a21b76821ecbf5c5"
             ],
+            "markers": "python_version != '3.3.*' and python_version >= '2.7' and python_version != '3.2.*' and python_version != '3.1.*' and python_version != '3.0.*'",
             "version": "==0.6.0"
         },
         "prompt-toolkit": {
@@ -304,6 +336,7 @@
                 "sha256:3fd59af7435864e1a243790d322d763925431213b6b8529c6ca71081ace3bbf7",
                 "sha256:e31fb2767eb657cbde86c454f02e99cb846d3cd9d61b318525140214fdc0e98e"
             ],
+            "markers": "python_version != '3.3.*' and python_version >= '2.7' and python_version != '3.2.*' and python_version != '3.1.*' and python_version != '3.0.*'",
             "version": "==1.5.4"
         },
         "pygments": {
@@ -315,11 +348,11 @@
         },
         "pylint": {
             "hashes": [
-                "sha256:0990347c0f605927fadb2a9366a0b3d40bd19eb44e4312f0a1ef729a389b2f40",
-                "sha256:19b902f93f2dc3fa45565e54b88702b28379be40107f509a8516dde152460d1f"
+                "sha256:285c9ae7255acb584057fe31051a37498985e632b99fc0ec93b7eb38a1b137f9",
+                "sha256:dd5c0fc4e6a4cb9483a4367699099a7dfc8a13de9ecac4cb16855ffac68d49de"
             ],
             "index": "pypi",
-            "version": "==2.0.0.dev1"
+            "version": "==2.0.0.dev2"
         },
         "pytest": {
             "hashes": [
@@ -337,6 +370,16 @@
             "index": "pypi",
             "version": "==0.5.0"
         },
+        "pyyaml": {
+            "hashes": [
+                "sha256:254bf6fda2b7c651837acb2c718e213df29d531eebf00edb54743d10bcb694eb",
+                "sha256:3108529b78577327d15eec243f0ff348a0640b0c3478d67ad7f5648f93bac3e2",
+                "sha256:3c17fb92c8ba2f525e4b5f7941d850e7a48c3a59b32d331e2502a3cdc6648e76",
+                "sha256:8d6d96001aa7f0a6a4a95e8143225b5d06e41b1131044913fecb8f85a125714b",
+                "sha256:c8a88edd93ee29ede719080b2be6cb2333dfee1dccba213b422a9c8e97f2967b"
+            ],
+            "version": "==4.2b4"
+        },
         "simplegeneric": {
             "hashes": [
                 "sha256:dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173"
@@ -350,6 +393,20 @@
             ],
             "version": "==1.11.0"
         },
+        "smmap2": {
+            "hashes": [
+                "sha256:b78ee0f1f5772d69ff50b1cbdb01b8c6647a8354f02f23b488cf4b2cfc923956",
+                "sha256:c7530db63f15f09f8251094b22091298e82bf6c699a6b8344aaaef3f2e1276c3"
+            ],
+            "version": "==2.0.3"
+        },
+        "stevedore": {
+            "hashes": [
+                "sha256:e3d96b2c4e882ec0c1ff95eaebf7b575a779fd0ccb4c741b9832bed410d58b3d",
+                "sha256:f1c7518e7b160336040fee272174f1f7b29a46febb3632502a8f2055f973d60b"
+            ],
+            "version": "==1.28.0"
+        },
         "toml": {
             "hashes": [
                 "sha256:8e86bd6ce8cc11b9620cb637466453d94f5d57ad86f17e98a98d1f73e3baab2d"
@@ -377,6 +434,8 @@
         "typed-ast": {
             "hashes": [
                 "sha256:0948004fa228ae071054f5208840a1e88747a357ec1101c17217bfe99b299d58",
+                "sha256:10703d3cec8dcd9eef5a630a04056bbc898abc19bac5691612acba7d1325b66d",
+                "sha256:1f6c4bd0bdc0f14246fd41262df7dfc018d65bb05f6e16390b7ea26ca454a291",
                 "sha256:25d8feefe27eb0303b73545416b13d108c6067b846b543738a25ff304824ed9a",
                 "sha256:29464a177d56e4e055b5f7b629935af7f49c196be47528cc94e0a7bf83fbc2b9",
                 "sha256:2e214b72168ea0275efd6c884b114ab42e316de3ffa125b267e732ed2abda892",
@@ -388,6 +447,9 @@
                 "sha256:6de012d2b166fe7a4cdf505eee3aaa12192f7ba365beeefaca4ec10e31241a85",
                 "sha256:79b91ebe5a28d349b6d0d323023350133e927b4de5b651a8aa2db69c761420c6",
                 "sha256:8550177fa5d4c1f09b5e5f524411c44633c80ec69b24e0e98906dd761941ca46",
+                "sha256:898f818399cafcdb93cbbe15fc83a33d05f18e29fb498ddc09b0214cdfc7cd51",
+                "sha256:94b091dc0f19291adcb279a108f5d38de2430411068b219f41b343c03b28fb1f",
+                "sha256:a26863198902cda15ab4503991e8cf1ca874219e0118cbf07c126bce7c4db129",
                 "sha256:a8034021801bc0440f2e027c354b4eafd95891b573e12ff0418dec385c76785c",
                 "sha256:bc978ac17468fe868ee589c795d06777f75496b1ed576d308002c8a5756fb9ea",
                 "sha256:c05b41bc1deade9f90ddc5d988fe506208019ebba9f2578c622516fd201f5863",