Merge pull request #42 from DeOb/master

JPA backend (AppEngine)
Merge pull request #43 from DeOb/master

Remove jdom files
Updated classpath

Removed jdom, jsoup and rome. Its easier to settup a new application that way.
Update .settings/com.google.appengine.eclipse.core.prefs
Added transparent gif that was removed before.
Added gitattributes file
Normalize line endings
Fixes #40
Simplified datastore manager
Code cleanup
Added a Google App Engine dynamic backend that is supposed to be used to cleanup the database.
Some index.html cleanup
Merge pull request #44 from jbreitbart/master

Various update
JPA fix