rename eclipse/build-4.2.1.xml -> eclipse/build-4.2.2.xml, webtools/build-3.4.1.xml -> webtools/build-3.4.2.xml; update builders for juno, eclipse, and wtp in prep for Juno SR2 target platform builds
replace site.xml with composite*.xml because apparently tycho now ignores site.xml files when parsing sites for content. Silly tycho.
replace http://download.jboss.org/drools/release/latest/org.drools.updatesite/ with droolsjbpm/ (published via jbosstools-promote job, which now supports zip as input - JBIDE-12767)
commit files already on server (forgot to push to gh)
release soa tooling 3.3.3
release soa tooling 3.3.3
update maximum TP to point at 4.22.0.Final-SNAPSHOT instead of 4.21.4.Final-SNAPSHOT
point jbosstools-directory.xml at SOA 3.3.3
point jbosstools-directory.xml at SOA 3.3.3; remove obsolete discovery plugins
new m2e version
new builder for egit 2.3.1 needed to fix JunoSR2/KeplerM5a problem (JBIDE-13629)
new builder for egit 2.3.1 needed to fix JunoSR2/KeplerM5a problem (JBIDE-13629)
JBIDE-13629 point http://download.jboss.org/jbosstools/updates/kepler/ composite*.xml at new 4.30.5.Alpha1 target platform
JBIDE-13629 point http://download.jboss.org/jbosstools/updates/juno/ composite*.xml at new 4.22.1.Final target platform
JBIDE-13629 point http://download.jboss.org/jbosstools/updates/juno/ and /kepler/ at new TPs using -SNAPSHOT suffix
Use new descriptors for 4.1.x

Signed-off-by: Fred Bricon <fbricon@gmail.com>
new builders for Spring IDE 3.2 M2, GWT 3.2, and Subclipse 1.8.18/SVNKit 1.7.8.1 (JBDS-2484)
new mirror 4.30.1 includes updates to Atlassian, GWT/GPE, SpringIDE, Subclipse, TestNG (JBDS-2484)
add p2.index files to make site parsing faster
new mirror 4.30.1 includes updates to Atlassian, GWT/GPE, SpringIDE, Subclipse, TestNG (JBDS-2484)