fix minor CSS issues

* change background color on hover in board/issue list (#169)
* project list style (profile, all projects) (#150)
* show number of watchers on project list (#149)
* text-overflow problem in commit history (#123)
Merge branch 'master' of https://github.com/nforge/hive into fix-minorcss-130604
Merge pull request #191 from laziel/fix-minorcss-130604

CSS 이슈 묶음 (#123, #149, #150, #169)