* Add teams to repo on collaboration page.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Add option for repository admins to change teams access to repo.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Add comment for functions

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Make RepoAdminChangeTeamAccess default false in xorm and make it default checked in template instead.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Make proper language strings and fix error redirection.

* Add unit tests for adding and deleting team from repository.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Add database migration

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Fix redirect

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Fix locale string mismatch.

Signed-off-by: David Svantesson <davidsvantesson@gmail.com>

* Move team access mode text logic to template.

* Move collaborator access mode text logic to template.