Fix for #10
Update Makefile to use full sed parameter
Use short form of --in-place in Makefile
Merge pull request #13 from dylanmackenzie/develop

Update Makefile to use full sed parameter
Update contributors
Bumped rebar version
Use verbose flag when running CT
Bumped extensions
Merge branch 'develop' of https://github.com/karlll/kjell into develop
Added contribution instructions
Bumped version
Re-adding lost installation fix.
Corrected version.
Added contributor
Updated contributors
Version 0.2.3 - Bugfixes
Merge branch 'develop'