moved frontendtests to own directory

easier testing in WebStorm
changed the event for verificating required fields
new styles in frontend to create URLs

- twitterify
- mailtoify
- urlify
small README for frontendtests
package.json: updated devDependencies of grunt-mocha-hack to ~0.1.0
use winston-config for easy configuration of winston
Merge pull request #120 from leider/master

nice one
Merge pull request #122 from fdeberle/master

package.json: updated devDependencies of grunt-mocha-hack to ~0.1.0
Merge pull request #121 from janbaer/master

Integration der Gruppen in die Activities. 
* Minor comments on first commit ;-)
Merge branch 'master' into confupdate
Minor adoptions to force rebuild
minor adoption to allow the usage of different log levels
Merge pull request #124 from triplem/confupdate

;) Confupdate