NEXUS-5912: Kill plx from LDAP
NEXUS-5912: LDAP plugin changes
NEXUS-5912: Missing Injects
NEXUS-5912: IT helper SISUized
NEXUS-5912: Make REST resources typed
NEXUS-5912: Fixed wrong injection
NEXUS-5912: Make nexus-ldap-commpons be discoverd
NEXUS-5912: returning names

As all the ITs are relying on those.
NEXUS-5912: Prevent extending components

As the "test" related components were doing
it, and also, those never got unregistered
from event bus.
Merge pull request #150 from sonatype/nexus-5912-kill-plx-ldap

NEXUS-5912: Kill plx in LDAP