prepare release

fix dropdown style

prepare 0.6.5

Merge branch 'develop' of github.com:gogits/gogs into develop

fix gogs#1156

update gopmfile

routers/install.go: able to keep previous custom settings for 2nd tim…

…e install

- .gopmfile: update all commits

Merge pull request gogs#830 from TonyTsangHK/dev

Add max-width to commit message of repo-files-table

prepare for 0.5.9

Fix gogs#635