Add coveralls.

Pipfile

@@ -11,5 +11,6 @@ plotly = "*"
 pandas = "*"
 
 [dev-packages]
+coveralls = "*"
 faker = "*"
 flake8 = "*"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "f33aa87b10b706d27411d7202390daf72230a62394b9f7f3c5988e5f3608ff32"
+            "sha256": "de9e2ccb120ed37e0adc3bd4f7054692647908b13127feb81f888290d060c1c8"
         },
         "requires": {},
         "sources": [
@@ -22,16 +22,16 @@
             "version": "==4.1.2"
         },
         "django": {
-            "version": "==1.11.4"
+            "version": "==1.11.6"
         },
         "django-filter": {
-            "version": "==1.0.4"
+            "version": "==1.1.0"
         },
         "django-widget-tweaks": {
             "version": "==1.4.1"
         },
         "djangorestframework": {
-            "version": "==3.6.4"
+            "version": "==3.7.1"
         },
         "idna": {
             "version": "==2.6"
@@ -49,13 +49,13 @@
             "version": "==4.4.0"
         },
         "numpy": {
-            "version": "==1.13.1"
+            "version": "==1.13.3"
         },
         "pandas": {
             "version": "==0.20.3"
         },
         "plotly": {
-            "version": "==2.0.15"
+            "version": "==2.1.0"
         },
         "python-dateutil": {
             "version": "==2.6.1"
@@ -67,7 +67,7 @@
             "version": "==2.18.4"
         },
         "six": {
-            "version": "==1.10.0"
+            "version": "==1.11.0"
         },
         "traitlets": {
             "version": "==4.3.2"
@@ -77,12 +77,30 @@
         }
     },
     "develop": {
+        "certifi": {
+            "version": "==2017.7.27.1"
+        },
+        "chardet": {
+            "version": "==3.0.4"
+        },
+        "coverage": {
+            "version": "==4.4.1"
+        },
+        "coveralls": {
+            "version": "==1.2.0"
+        },
+        "docopt": {
+            "version": "==0.6.2"
+        },
         "faker": {
-            "version": "==0.7.18"
+            "version": "==0.8.6"
         },
         "flake8": {
             "version": "==3.4.1"
         },
+        "idna": {
+            "version": "==2.6"
+        },
         "mccabe": {
             "version": "==0.6.1"
         },
@@ -95,8 +113,17 @@
         "python-dateutil": {
             "version": "==2.6.1"
         },
+        "requests": {
+            "version": "==2.18.4"
+        },
         "six": {
-            "version": "==1.10.0"
+            "version": "==1.11.0"
+        },
+        "text-unidecode": {
+            "version": "==1.0"
+        },
+        "urllib3": {
+            "version": "==1.22"
         }
     }
 }