OBMFULL-5463 Extract the date command in its own file
OBMFULL-5463 Show running config in conf

Conflicts:
	java/sync/opush/push-dao-ehcache/src/test/java/org/obm/push/store/ehcache/ObjectStoreManagerTest.java
OBMFULL-5463 Can update config on the fly
OBMFULL-5463 CRaSH dump EhCache running configuration command