COMMON: fixing product so at least it builds.
o.c.p.l.epics.ui: removing dependency on org.eclipse.help.webapp and org.eclipse.help.appserver.
Dependency should not be necessary and prevents building a product that just depends on org.eclipse.rcp feature.
COMMON: using feature based product
Merge branch '3.2.x' of git@github.com:ControlSystemStudio/cs-studio.git into 3.2.x