reintegrating translation branch

Merge branch 'translation_to_pt-br'
Fixed url panel failure when there are no repository urls (issue 269)
Fixed missing model classes in Gitblit Manager build
Fixed spacing of ref span in digest and reflog panels
Fix for IE10 compatibilty mode
Reset dashboard and activity commit cache on branch REWIND or DELETE
Update Chinese translate @ version 1.30
Merge pull request #94 from yin8086/Chinese

Update Chinese translate @ version 1.30
Ensure Keys class is included with all builds
Documentation
Added unit test for reported issue (issue-271)
Fixed bug with adding new local users with external authentication
Prepare Dutch resource for translation
Documentation
Updated Dutch translation
Fixes findbugs warning - dereferencing null in exception case
Spanish translation:
- Improved translation
- Translated to the rev. 1.3.1

Signed-off-by: mrbytes <eguervos@msn.com>
Merge branch 'master' of https://github.com/gitblit/gitblit
Update Korean Translation
Merge pull request #98 from simonharrer/close-resources-correctly

Fixes findbugs warning - dereferencing null in exception case