Started with diffs
Some minor adjustments for file name retrieval and line number counting
Diff now also shows line number in old file
Changed table classes and created some styles
Ability to diff single commit with its parent
Small changes to Diff view
Diff link from project view
Individual commit diff now uses specific git server request
Same style for diff button
Merge https://github.com/devhub-tud/devhub into project-diffs

Conflicts:
	src/main/resources/templates/project-view.ftl
Merge pull request #28 from JWGmeligMeyling/project-diffs

Project diffs