Refactored project to be buildable by maven.

Removed all dependency jars, moved folders to maven layout, Added web.xml
for tomcat deployment (does not fully work, as tomcat 7 does not yet
support websockets, thefore we stay with an embedded grizzly)

User images need testing, everything else *should* work.
Changed submodule url to github
New commit in common
Added log4j-core to maven
Made config loadable from external file
Added a readme documenting the config
added www........
Added maven plugin to generate git commit info, echo it in server info
Delete picture.jpg
Added Data Directory for images and rallye.apk,
Changed one constructor for WebAppExcept
Merge branch 'maven' of github.com:antidau/rallye-server into maven
Merge branch 'maven'

Conflicts:
	.classpath
	.gitignore
	.project
	src/main/java/de/rallye/RallyeConfig.java
	src/main/java/de/rallye/RallyeResources.java
	src/main/java/de/rallye/StadtRallye.java
	src/main/java/de/rallye/db/Ry.java
	src/main/java/de/rallye/pushService/resource/PushCommand.java
	src/main/java/de/rallye/pushService/resource/PushServiceException.java