Added ability to disable dashboard in settings.py.

* PyLint code cleanup.

__init__.py

@@ -1 +1,3 @@
+# pylint: disable=invalid-name
+
 default_app_config = 'passive_data_kit.apps.PassiveDataKitConfig'

urls.py

@@ -1,18 +1,26 @@
+# pylint: disable=line-too-long
+
 from django.conf.urls import url
 
+from django.conf import settings
+
 from .views import add_data_point, add_data_bundle, pdk_home, unmatched_sources, pdk_source, \
                    pdk_source_generator, pdk_visualization_data, pdk_export, pdk_download_report
 
 urlpatterns = [
-    url(r'^visualization/(?P<source_id>.+)/(?P<generator_id>.+)/(?P<page>\d+).json$', \
-        pdk_visualization_data, name='pdk_visualization_data'),
-    url(r'^report/(?P<report_id>\d+)/download$', pdk_download_report, name='pdk_download_report'),
-    url(r'^source/(?P<source_id>.+)/(?P<generator_id>.+)$', pdk_source_generator, \
-        name='pdk_source_generator'),
-    url(r'^source/(?P<source_id>.+)$', pdk_source, name='pdk_source'),
-    url(r'^export$', pdk_export, name='pdk_export'),
     url(r'^add-point.json$', add_data_point, name='pdk_add_data_point'),
     url(r'^add-bundle.json$', add_data_bundle, name='pdk_add_data_bundle'),
-    url(r'^unmatched-sources.json$', unmatched_sources, name='pdk_unmatched_sources'),
-    url(r'^$', pdk_home, name='pdk_home'),
 ]
+
+try:
+    if settings.PDK_DASHBOARD_ENABLED:
+        urlpatterns.append(url(r'^visualization/(?P<source_id>.+)/(?P<generator_id>.+)/(?P<page>\d+).json$', \
+                               pdk_visualization_data, name='pdk_visualization_data'))
+        urlpatterns.append(url(r'^report/(?P<report_id>\d+)/download$', pdk_download_report, name='pdk_download_report'))
+        urlpatterns.append(url(r'^source/(?P<source_id>.+)/(?P<generator_id>.+)$', pdk_source_generator, name='pdk_source_generator'))
+        urlpatterns.append(url(r'^source/(?P<source_id>.+)$', pdk_source, name='pdk_source'))
+        urlpatterns.append(url(r'^export$', pdk_export, name='pdk_export'))
+        urlpatterns.append(url(r'^unmatched-sources.json$', unmatched_sources, name='pdk_unmatched_sources'))
+        urlpatterns.append(url(r'^$', pdk_home, name='pdk_home'))
+except AttributeError:
+    pass