Becky Siegel 6bf4e4f14e Allow for comments to be collapsible
Previously in Polygerrit, comments were always expanded. You could
always see the full comment (if multiline) and any applicable actions.

This change creates a collapsed comment view.  It adds a preview of the
text to the header row when collapsed, and can be toggled open when any
part of the header is clicked.

Bug: Issue 4698
Change-Id: Idca5caf92eb32518b6737dbb5a3380d227513996
2016-10-06 15:28:42 -07:00
..
2016-10-06 15:28:42 -07:00