Added a facility to see and execute actions on plugins
Tests were too sensitive
Added a warning when a bundle could not be found in the repositories but was actually available in the workspace; it was just missing version=latest (or snapshot)

Also created constants for the LATEST/SNAPSHOT
The bnd setting command could not delete variables
Added a glob for the release repo which overrides
the first writable repo. Changed the -r option (filerepo)
to -f/--filerepo
Removed unused variable