Merge pull request #34 from FreekDB/master

ChartUnit, ReportReader, ViewerFrame and Constants: fixed Checkstyle issues (mvn checkstyle:checkstyle)
Merge remote-tracking branch 'upstream/master'
Added new DevelopersInformation.md and modified README.md

README.md:
- Changed title.
- Added VUmc before OPL.
- Made documentation description and link more specific.
- Added developer information description and link.

DevelopersInformation.md:
- Created first version.
Added new DevelopersInformation.md and modified README.md

README.md:
- Changed title.
- Added VUmc before OPL.
- Made documentation description and link more specific.
- Added developer information description and link.

DevelopersInformation.md:
- Created first version.