[xtext-dev] infrastructure changes

[Sven Efftinge <sven.efftinge@xxxxxxxxx>]

Hi all,

the 'develop' project is now empty.
All the tools we had there are no in 'releng'. The project sets are  
also there, but they now contain Xtetx bundles only.
The other stuff is materialized in the target platform (see READ.ME in  
releng/team/)

I'll update the wiki tomorrow, but wanted to check it in before going  
home in order to see if my changes break the build :-)
I also slightly changed how log4j is configured and all our bundles  
now use package import 'org.apache.log4j'.

Cheers,
Sven