Make name column larger in tasks grid
[NX-605] Disable settings tab when schedule is internal
[NX-605] Hide Schedule tab when schedule type is "internal"
[NX-607] Do not show Settings/Schedule tabs if task is not exposed (task type not available)
[NX-608] Match PurgeTimelineTask descriptor id with task class name
Merge pull request #653 from sonatype/fix-tasks-ui-bugs

REVIEW: Tasks UI related fixes
Do not auto expand nodes on click

This fixes the problem with nodes not collapsing sometimes.
Do not show detail tabs for repos out of service while browsing
Recent task rename missed this (string) reference
NX-485: remove last few embedded plugin dependencies