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
(cherry picked from commit 68e03b618eeee0af1a037a290f0407da13606a93)