MDL-8323 Add proper setup of course $CFG variables, fix use of global $COURSE

new function course_setup() thats does proper $CFG-> , locale and themes setup much sooner than print_header() originally (needed for MDL-8067), cleanup of forgotten global $course issues

MDL-8067 Fixed several $HTTPSREQUIRED issues - html editor now loads from https (the old hack did not wotk with IE7, new hack is uglier but works), fixed formlibs images (we can not set them in library global scope, we must wait for httpsrequired() and require_login() and od that in function), fixed links in meta.php, fixed help images

fixed setting of new $USER values in user edit forms

user/edit.php

@@ -6,6 +6,8 @@
     require_once($CFG->dirroot.'/user/editlib.php');
     require_once($CFG->dirroot.'/user/profile/lib.php');
 
+    httpsrequired();
+
     $course = optional_param('course', SITEID, PARAM_INT);   // course id (defaults to Site)
 
     if (!$course = get_record('course', 'id', $course)) {
@@ -13,7 +15,6 @@
     }
 
     require_login($course->id);
-    httpsrequired();
 
     if (isguest()) { //TODO: add proper capability to edit own profile and change password too
         print_error('guestnoeditprofile');
@@ -77,7 +78,7 @@
         profile_save_data($usernew);
 
         // Override old $USER session variable
-        $usernew = (array)get_record('user', 'id', $newuser->id); // reload from db
+        $usernew = (array)get_record('user', 'id', $usernew->id); // reload from db
         foreach ($usernew as $variable => $value) {
             $USER->$variable = $value;
         }