* Turn swagger.v1.json into template

* Rename ENABLE_SWAGGER_ENDPOINT option to ENABLE_SWAGGER

* Replace all ctx.Handle with ctx.ServerError or ctx.NotFound

* Change Handle(403) to NotFound, avoid using macaron's NotFound

* remove GetRepositoryByRef and add GetRepositoryByOwnerAndName

* fix tests

* fix tests bug

* some improvements

* Update macaron

* Various wiki bug fixes

* Fix go get response if only app URL is custom in configuration

* Rewrite to update Domain setting to match AppURL

* Always return valid go-get meta, even if unauthorized

* don't leak information

* Allow ENABLE_OPENID_SIGNUP to depend on DISABLE_REGISTRATION

Omit the configuration variable (the default) to be dependent.
Fixes #1363

* Move OpenID settings under Service object

* Show OpenID SignUp and SignIn status in admin panel / configuration

* golint fixed for modules/setting

* typo fixed and renamed UNIXSOCKET to UnixSocket

- Update import paths from github.com/go-gitea to code.gitea.io
- Fix import path for travis

See https://docs.travis-ci.com/user/languages/go#Go-Import-Path

- User profile un/follow
- List user's followers/following

This allows the admin to disable the version information about gogs and
go in use in the footer.