update README to include using multiple xml files
Merge pull request #30 from edx/will/diff-cover-in-travis

Run diff-cover on itself in Travis
update README to make diff-quality its own section
Merge pull request #32 from edx/readme_update

update README to include using multiple xml files
Upgrade version
Show function names and TODO: in Pylint reports
Force Pylint version < 1.0 because 1.0 removes --include-ids option
Merge pull request #36 from edx/sarina/allow-todo-colon

Show function names and TODO: in Pylint reports
Added --no-ext-diff option to `git diff` command to avoid
invoking external diff tools.
Merge pull request #39 from edx/will/disable-external-diff

Added --no-ext-diff option to `git diff` command
CHANGELOG update
Merge branch 'master' into will/src-snippets