Merge branch 'maint'

* maint:
  GIT 1.6.0.5
  "git diff <tree>{3,}": do not reverse order of arguments
  tag: delete TAG_EDITMSG only on successful tag
  gitweb: Make project specific override for 'grep' feature work
  http.c: use 'git_config_string' to get 'curl_http_proxy'
  fetch-pack: Avoid memcpy() with src==dst

gitweb/gitweb.perl

@@ -241,6 +241,7 @@ our %feature = (
 	# $feature{'grep'}{'override'} = 1;
 	# and in project config gitweb.grep = 0|1;
 	'grep' => {
+		'sub' => \&feature_grep,
 		'override' => 0,
 		'default' => [1]},