RepoLink -> Link, RepoRelLink -> RelLink, FullRepoLink -> FullLink

Additional properties: created_at, updated_at

* Add MaxDisplayFileSize setting

* Don't show files that are too large

* Localized FileTooLarge

* Change IsFileTooBig => IsFileTooLarge

Adds description, stars_count, forks_count, watchers_count and
open_issues_count.

Executed go fmt

getEngine() not handles DB parameters (#2972) (#2974)

Uses .AllCols() for Update in updateMirror()

Spanish traslation removed

Fixed a wrong way to ommit the --prune option in process.ExecDir() for MirrorUpdate function

This prevents user retrieve arbitrary webhook by changing URL to
access webhook from other unauthorized repositories.

Initially proposed by #2376 and fixes #3068 as well.

- Update locale bindata

Closes #3192

Add start count corrector for Repository.NumClosedIssues

- update glide info

- Fix go-gogs-client#10
- Related to #809

Both are possible on explore and admin panel

Collaborators have write access as default, and can be changed via repository
collaboration settings page to change between read, write and admin.

- Allow to delete current avatar