BZ-989519 Upgrades: quartz 1.6.1 to 1.8.5, netty 3.2.0 to 3.2.6, spring 3.0.6 to 3.0.7, ftpserver-core 1.0.4 to 1.0.6, commons-net 2.0 to 2.6 (to be in sync with switchyard) + refactor quartz's groupId
 - adding missing EnvironmentName for pessimistic locking
DROOLS-228: fixing classloaders to properly resolve maven dependencies
(cherry picked from commit 2925a529ba59f2ed9829bb4b2d89749f57e89854)