Merge branch 'jx/proc-receive-hook' into pu

"git receive-pack" that accepts requests by "git push" learned to
outsource most of the ref updates to the new "proc-receive" hook.

* jx/proc-receive-hook:
  doc: add documentation for the proc-receive hook
  transport: parse report options for tracking refs
  t5411: test updates of remote-tracking branches
  receive-pack: new config receive.procReceiveRefs
  refs.c: refactor to reuse ref_is_hidden()
  receive-pack: feed report options to post-receive
  doc: add document for capability report-status-v2
  New capability "report-status-v2" for git-push
  receive-pack: add new proc-receive hook
  t5411: add basic test cases for proc-receive hook
  transport: not report a non-head push as a branch

refs.h

@@ -743,6 +743,7 @@ int parse_hide_refs_config(const char *var, const char *value, const char *);
  * parameter always points to the full ref name.
  */
 int ref_is_hidden(const char *, const char *);
+int ref_matches(struct string_list *, const char *, const char *);
 
 enum ref_type {
 	REF_TYPE_PER_WORKTREE,	  /* refs inside refs/ but not shared       */