layout UI modification

- layout has widened
- size of some fields set to relative value(px to perc)
- project header style has changed
project UI modified. fix UI problems

- navbar turn to darken background
- trivial style changes included
- commentForm has divided to partial template
- color of buttons in board,issue view has changed
- responsive CSS applied experimentally: GNB, Code Browser
- search form in global help(help/toc) has removed
project layout has changed. (home,navbar,prjmenu)

- project home layout has changed
- link to original project of forked one has moved to next of project title
- repository URL shows on click [clone] button
- watch button style has changed
- apply bootstrap scaffolding on issue list
Merge branch 'master' of https://github.com/nforge/hive into more-flat-ui