Added support for code climate code coverage

Currently alongside coveralls
Removed coveralls
Merge pull request #20 from iainbeeston/codeclimate_test_coverage

Replace coveralls with code climate for test coverage
Revert "Used require rather than require relative where it's no different"

This reverts commit 00c301add651dabb149a3a281cf1b91fdaa6de02.

Was causing "LoadError: cannot load such file -- nickel/version" on load
Bump version
Added comments to explain why existing failing specs are failing
Added test case for issue #4
Added tests for let's do it today, from #10
Added tests for morning, afternoon, evening and night, from #10
Added test for meeting at 8 o'clock, from #10
Added let's go dancing examples from #10
Added every sunday example, from #10
Added tests for give me two cents from #10
Bugfix for all day times
Added a test for non-date related text that happens to include a dash