reintegrating translation branch

Merge branch 'translation_to_pt-br'
Merge pull request #102 from Mrbytes/master

Updated Spanish translation
Updated Polish translation for 1.3.1
Merge branch 'master' of https://github.com/gitblit/gitblit
Translation of lastest Strings up-do-date.
Tradução das últimas Strings até a data atual.
Merge pull request #103 from ljader/fix-polish-locale-for-1.3.1

Updated Polish translation for 1.3.1
Merge pull request #104 from rafaelcavazin/master

Update Brazilian Portuguese translation
Fixed incorrecter tagger in dashboard pages (issue-276)
Documentation
Ubuntu/Debian and CentOS/Fedora service tweaks per forum feedback
Added GET_USER request to RPC interface (issue-275)
Update Gitblit reflog on branch delete from UI if Gitblit has an existing reflog
Catch IOException which includes SocketException in DownloadZipServlet
Added PAMUserService for local Linux/Unix/MacOSX account authentication
Documentation
Some few lang adjustments - Alguns ajustes de gramática
Merge branch 'update-lang-ptbr-20130723'
Merge pull request #105 from rafaelcavazin/master

some few grammar adjustments in pt-br
Automatically decode %7E in repository names to ~ (issue-278)
Added missing GitblitWicketFilter to War and Express builds (issue-274)