[NEXUS-6626] Upgrade to HC 4.3.4
Add showInfo to master detail (similar to showWarning)
Merge pull request #564 from sonatype/NEXUS-6626-upgrade-to-hc434

REVIEW: [NEXUS-6626] Upgrade to HC 4.3.4
Remove upper bound of enforcer rule
Send all selected models on GridHasSelection evaluate function
Add showInfo to master detail (similar to showWarning)
Merge pull request #568 from sonatype/remove-mvn-30-enforces-rule

REVIEW Remove mvn3.0 enforcer rule
[NEXUS-6621] Include request.log in support zip (PR #567)
NX-390: avoid use of Require-Bundle
NX-390: fix P2 runtime imports
NX-390: bcprov-jdk15on should not be embedded
NX-390: clean up plugin activation
NX-390: avoid embedding duplicates of javax specs, and fix maven-model split-pkg
NX-390: H2 needs dynamic visibility of core types (for deserialization)