Fix coverage configuration and execution

A number of configuration errors prevent the successful creation of code
coverage. This corrects the .coveragerc source/omit setup and the tox
package name generation.

http://lists.openstack.org/pipermail/openstack-dev/2015-October/076193.html

Change-Id: Ie23fa6233a49e9db318b08d5a93e4dd7b0dae82d

.coveragerc

@@ -1,7 +1,7 @@
 [run]
 branch = True
-source = log
+source = oslo_log
-omit = log/tests/*,log/openstack/*
+omit = oslo_log/tests/*
 
 [report]
 ignore_errors = True

.gitignore

@@ -4,7 +4,7 @@
 *.so
 
 # Packages
-*.egg
+*.egg*
 *.egg-info
 dist
 build
@@ -23,6 +23,7 @@ pip-log.txt
 
 # Unit test / coverage reports
 .coverage
+cover
 .tox
 nosetests.xml
 .testrepository
@@ -48,4 +49,4 @@ ChangeLog
 
 # Editors
 *~
-.*.swp
+.*.swp

tox.ini

@@ -27,7 +27,7 @@ commands = {posargs}
 commands = python setup.py build_sphinx
 
 [testenv:cover]
-commands = python setup.py testr --coverage --testr-args='{posargs}'
+commands = python setup.py test --coverage --coverage-package-name=oslo_log --testr-args='{posargs}'
 
 [flake8]
 # H803 skipped on purpose per list discussion.