- fix delete user but repository watches are not decreased

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

This commit does a lot of the work of refactoring the access table in a table with id's instead of strings.

The result does compile, but has not been tested. It may eat your kittens.

This commit does a lot of the work of refactoring the access table in a table with id's instead of strings.

The result does compile, but has not been tested. It may eat your kittens.

Conflicts:
	modules/setting/setting.go

Conflicts:
	templates/repo/release/list.tmpl
	templates/user/dashboard/dashboard.tmpl

Conflicts:
	routers/repo/setting.go

The link assumes that the issue belongs to the signed in
user, which is not necessarily the case
I changed it to use repository owner name instead