Updated README.md to move Contributing details to wiki and clarify some instructions
Added contributing.md file.
Changed contributing.md file name to be in all caps.
Updated Contributing details
Merge pull request #154 from peerlibrary/new-contributing-details

Added contributing.md file.
Code style.
Code style.
Comments in templates.
Use Error for internal errors.
Add Travis CI testing.
Updating Travis CI configuration to not interfere with testing.
Tests fix.
More on tests.
Updating documentation on contributing code.
development branch is not yet available.
Added reporting a bug instructions.
Reordered pull requests contents.
Merge branch 'master' into new-annotations2