Remove collaborators when removing and transferring repository

Conflicts:
	gogs.go
	models/models.go
	models/user.go
	templates/.VERSION
	templates/org/home.tmpl

- templates/org: mirror fix on name output
- routers: add missing error check

[docker] openssh-client provide ssh-keygen.

- modules/middleware/context.go: add HandleAPI method

$DIRECTORY variable is never set

- routers/user: little code format
- conf/locale: update French locale

Bugfix for wrong label count

Not sure why, but xorm ignores the num_issues and num_closed_issues
columns when updating, even though the values changed.

Listing them explicitly fixes the issue with the wrong issue counts

Updating context and fixing permission issues

Fix: 504 5.5.2 <localhost>: Helo command rejected

fix typo mistake in highlighting

The new new highlighting

Changed repo-clone url behavior on bare repo page, added LESS compile script

Remove the "PHP" style formatting function

Make sure that a mirror can't be written to by http or ssh

Remove GoGet option from repository and handle it with ?go-get=1 instead

The normal go get protocol is to show the go-import meta tag when ?go-get=1 is appended to the url. This commit implements that behaviour and cleans the go-get option from the repository settings page.

The "PHP" formatting function doesn't add anything, except an undocumented date format.

All usages in the templates have been replaced with DateFmtShort and DateFmtLong for convenience.

This is a balance between speed and nice code, where speed has won. To prevent a repository query for each action the ownername is match with the current user.

It would be "cleaner" or "better" if we fetch the repository each time. Another option is to add the RepoOwnerID to action

The boolean flags in the repo context have been replaced with mode and two methods

Also, the permissions have been brought more in line with https://help.github.com/articles/permission-levels-for-an-organization-repository/ , Admin Team members are able to change settings of their repositories.

Fix a bunch of small typos and formatting quirks

cmd/web.go: check version after load config