fix error at admin/config

- templates/user/settings: fix email panel nav highlight

fix settings/email html&css

Fix #819 by fetching the repository from db before updating

Code-wise: the fixing-part of the code now doesn't reference the issue any more, because this is done by the referencing-part of the code, which is called just before.

Fixes #462, #668, #732.

add a function to rewrite all public keys on admin request

Add Miguel de la Cruz as a translator

correction: updated docker link

README: remove duplicated travis badge

- routers: use new binding convention to simplify code
- templates: able to set HTTP port number in install page

Add a freebsd init script.

- update russian locale

Create db migrations framework

Implement #798 Flexible ssh-key input

Fix #807 parse the userinfo with the golang tools

Fix in url if cache avatar is enabled