gitea/routers/private
mrsdizzie ca46385637 Clean up various use of escape/unescape functions for URL generation ()
* Use PathUnescape instead of QueryUnescape when working with branch names

Currently branch names with a '+' fail in certain situations because
QueryUnescape replaces the + character with a blank space.

Using PathUnescape should be better since it is defined as:

// PathUnescape is identical to QueryUnescape except that it does not
// unescape '+' to ' ' (space).

Fixes 

* Change error to match new function name

* Add new util function PathEscapeSegments

This function simply runs PathEscape on each segment of a path without
touching the forward slash itself. We want to use this instead of
PathEscape/QueryEscape in most cases because a forward slash is a valid name for a
branch etc... and we don't want that escaped in a URL.

Putting this in new file url.go and also moving a couple similar
functions into that file as well.

* Use EscapePathSegments where appropriate

Replace various uses of EscapePath/EscapeQuery with new
EscapePathSegments. Also remove uncessary uses of various
escape/unescape functions when the text had already been escaped or was
not escaped.

* Reformat comment to make drone build happy

* Remove no longer used url library

* Requested code changes
..
branch.go improve protected branch to add whitelist support ()
internal.go Fix ssh deploy and user key constraints () ()
key.go Fix ssh deploy and user key constraints () ()
push_update.go Trigger sync webhooks on UI commit ()
repository.go Clean up various use of escape/unescape functions for URL generation ()
wiki.go fix clone wiki failed via ssh ()