tweaking build and using gradle-plugins 2.1.0
using new tracking code for documentation
Changed level to 1.7
added 4.7.2 release notes
use of gradle 1.6 and gradle plugins 2.2.0
#58: proof of concept for key generation
#58: generate all keys, passwords and checksums
#58: handle file already exists
#58: added bom task
#58: started work on ZooKeeper packager
#58: refactored shell to be accessible outside agent
#58: use shell
#58: added shell.tar
#58: fork to untar using native commands
#142: use gunzip / tar instead of tar -z
#58: added zookeeper packager
#58: added test for more than 1 server
#58: test templates + agent-server
#58: started work on glu meta model
#58: serialization of glu meta model