fix CodeBrowser
Merge branch 'master' of https://github.com/nforge/hive
update dynatree on change branch
fix dropdown menu for project member permission
README.md: add project front image
README.md: add project front screen shot
Update README.md
fix context error on issue.View
apply new design to fileDownloader
Merge branch 'master' of https://github.com/nforge/hive
#HIVE-38 express user's role in the project to the project navi
fix layout overflow problem
issue,posting: numbering per tracker or board.
issue,posting: Add numbering fields in Project.

Do not compute the lastest number of issue or posting on the fly. Instead
just use Project.lastIssueNumber or lastPostingNumber.

For lastIssueNumber and lastPostingNumber,
* Use primitive type 'long' in order to set them to zero by default
* Set their visibility from public to private in order to prevent to
  update them by mistake
Merge pull request #5 from npcode/feature/issue-number-per-tracker

issue,posting: numbering per tracker or board.
fixed a bug of diplaying the role of the project
changed primitive long to refrence type
fix: null member.user error
issue,posting: Fix database loading error.

* Set new fields to zero in order to prevent they have null value.
* Rollback e323393 because the fields should not have null value.
display role as a lebel