typofix - https://github.com/vlajos/misspell_fixer
Use "with" to wrap blocks instead of explicit open/close/try/finally

This makes the code cleaner in general, and prepares the ground for more OO refactoring of the code.
Merge pull request #98 from amosshapira/master

Use "with" to wrap blocks instead of explicit open/close/try/finally
Use the coveralls.io service for code coverage
Actually have travis-ci run coverage this time
Change the travis config a bit

There is no use in doing code coverage for the code installed into the
virtualenv. However, coverage for tests ensures there isn't dead code
in tests that isn't running when it should.
Merge pull request #94 from vlajos/typofixes-vlajos-20141204

typofix - https://github.com/vlajos/misspell_fixer
Merge pull request #11 from graphite-project/master

Pull in Upstream Changes