Java 1.7 bugfix
Merge pull request #1 from RecuencoJones/master

Java 1.7 bugfix
README.md maintenance

- Fixed a bug in curl request. -d parameter was missing
- Added DimGray group
Update README.md
- Added frontend to demo
- Minor changes to common, the POST endpoint is now /link
Merge branch 'master' of https://github.com/UNIZAR-30246-WebEngineering/UrlShortener2014.git
Merge remote-tracking branch 'upstream/master'