Closes #2764

- Update locale bindata

Always send user to settings screen to change avatar.
Drops "change_custom_avatar" localized message, keeps "change_avatar"
for the generic one.

NOTE: only changes the en-US locale, as per
https://github.com/gogits/gogs/wiki/Contributing-Code#those-we-do-not-accept

NOTE: requires rebuild of bindata.go to fully see effects

Add start count corrector for Repository.NumClosedIssues

- Update language choose dropdown to fit more languages

* Add and start jQuery AreYouSure

* Update SimpleMDE to 1.10.1 for `forceSync` support

* Forgot to remove old version SimpleMDE 1.10.0

* formatting -.-

Fix #2872

When use builtin SSH server with concurrent operations, there are probabilities
One connection could use the command from another connections.

Fix this by set SSH_ORIGINAL_COMMAND for each command, not set in global scope.

- add border-radius to filter list items
- use color as background of label for issue/pull view page

- update glide info

Add proper escaping of '#' in branchname in compare when doing pull
requests. This addresses issue #2822.

Set the description meta tag correctly when there is no repo
description. Also use the  ability to trim trailing whitespaces,
to make the template cleaner.

Use the authors name, and the description of the repo in HTML meta.
Pages without repository context will display as before.

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

No guarantee for compatibility with future changes

Both are possible on explore and admin panel