fix #195, minor CSS improvement

* num-badge colored to mono (related with #195)
* repositoryURL: font-family, width has adjusted
* issue, board: font-size, line-height of article Id has modified
* milestone: position of legend on list, description on view has modified
* labels on issue list is link to search with label now
* and more trivial changes
Merge branch 'master' of https://github.com/nforge/hive into fix-minorcss-130610
Merge pull request #216 from laziel/fix-minorcss-130610

#195 숫자배지 스타일 수정, 이슈 목록에서 라벨 클릭시 검색, 기타 사소한 CSS 수정