Measure unit test coverage.

Coverage is reported with py.test, and also "Run unit tests in ... with
coverage" is now supported in PyCharm.

.gitignore

@@ -12,4 +12,5 @@
 /pillar/application/static/storage/
 /build
 /.cache
+/.coverage
 /pillar/pillar.egg-info/

requirements.txt

@@ -27,6 +27,7 @@ zencoder==0.6.5
 # Development requirements
 pytest==2.9.1
 responses==0.5.1
+pytest-cov==2.2.1
 
 # Secondary requirements
 Flask==0.10.1
@@ -53,3 +54,4 @@ pyasn1-modules==0.0.8
 pymongo==3.2.2
 six==1.10.0
 wsgiref==0.1.2
+coverage==4.0.3

setup.cfg

@@ -0,0 +1,5 @@
+[pytest]
+addopts = -v --cov pillar --cov-report term-missing
+
+[pep8]
+max-line-length = 100