diff --git a/Pipfile.lock b/Pipfile.lock
index 45fa0ac..38e7b20 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,20 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "e82fe05cc1495aee3692dbd915cbd5e7ba30d695a854336997ba68c88abf93ce"
-        },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "0",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "17.5.0",
-            "platform_system": "Darwin",
-            "platform_version": "Darwin Kernel Version 17.5.0: Fri Apr 13 19:32:32 PDT 2018; root:xnu-4570.51.2~1/RELEASE_X86_64",
-            "python_full_version": "2.7.10",
-            "python_version": "2.7",
-            "sys_platform": "darwin"
+            "sha256": "53bc467a9465af8e8b83a633393a03f8fcaeeb344e4e023ed7b97a9dd184189e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -29,188 +16,482 @@
         ]
     },
     "default": {
-        "appnope": {
-            "hashes": [],
-            "markers": "sys_platform == 'darwin'",
-            "version": "==0.1.0"
-        },
         "atomicwrites": {
-            "hashes": [],
-            "version": "==1.2.1"
+            "hashes": [
+                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
+                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
+            ],
+            "version": "==1.3.0"
         },
         "attrs": {
-            "hashes": [],
-            "version": "==18.2.0"
-        },
-        "backports.shutil-get-terminal-size": {
-            "hashes": [],
-            "markers": "python_version == '2.7'",
-            "version": "==1.0.0"
+            "hashes": [
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
+            ],
+            "version": "==19.3.0"
+        },
+        "backcall": {
+            "hashes": [
+                "sha256:38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4",
+                "sha256:bbbf4b1e5cd2bdb08f915895b51081c041bac22394fdfcfdfbe9f14b77c08bf2"
+            ],
+            "version": "==0.1.0"
         },
         "click": {
-            "hashes": [],
+            "hashes": [
+                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
+                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
+            ],
             "version": "==7.0"
         },
         "decorator": {
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-            "version": "==4.3.0"
-        },
-        "enum34": {
-            "hashes": [],
-            "markers": "python_version == '2.7'",
-            "version": "==1.1.6"
+            "hashes": [
+                "sha256:54c38050039232e1db4ad7375cfce6748d7b41c29e95a081c8a6d2c30364a2ce",
+                "sha256:5d19b92a3c8f7f101c8dd86afd86b0f061a8ce4540ab8cd401fa2542756bce6d"
+            ],
+            "version": "==4.4.1"
         },
         "flask": {
-            "hashes": [],
+            "hashes": [
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+                "sha256:a080b744b7e345ccfcbc77954861cb05b3c63786e93f2b3875e0913d44b43f05"
+            ],
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             "version": "==1.0.2"
         },
-        "funcsigs": {
-            "hashes": [],
-            "markers": "python_version < '3.0'",
-            "version": "==1.0.2"
+        "importlib-metadata": {
+            "hashes": [
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+                "sha256:d5f18a79777f3aa179c145737780282e27b508fc8fd688cb17c7a813e8bd39af"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==0.23"
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         "ipdb": {
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+            "hashes": [
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+            ],
+            "index": "pypi",
             "version": "==0.11"
         },
         "ipykernel": {
-            "hashes": [],
+            "hashes": [
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+                "sha256:59b0855082d021f533cff477e1bb619e663b6aab11309a05bf88eaec9f53faed",
+                "sha256:699103c8e64886e3ec7053f2a6aa83bb90426063526f63a818732ff385202bad"
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+            "index": "pypi",
             "version": "==4.10.0"
         },
         "ipython": {
-            "hashes": [],
-            "version": "==5.8.0"
+            "hashes": [
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+            "version": "==7.9.0"
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         "ipython-genutils": {
-            "hashes": [],
+            "hashes": [
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+                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
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+        "isort": {
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+            "index": "pypi",
+            "version": "==4.3.21"
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         "itsdangerous": {
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+            "hashes": [
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+        "jedi": {
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+            "version": "==0.15.1"
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         "jinja2": {
-            "hashes": [],
-            "version": "==2.10"
+            "hashes": [
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+            "version": "==2.10.3"
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         "jupyter-client": {
-            "hashes": [],
+            "hashes": [
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         "jupyter-core": {
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         "markupsafe": {
-            "hashes": [],
-            "version": "==1.0"
+            "hashes": [
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