Brendan Heywood authored Jan 20, 2015 and Eloy Lafuente committed Apr 02, 2015

This introduces a new hook allowing an auth plugin to redirect to an
external login page directly without redundant redirects to the standard
login page first, or where possible to authenticate the user and simply
continue loading the page without any redirects. For some protocols such
as SAML reducing the number of redirects to the bare minimum greatly
speeds up the login process on high latency networks.

Conflicts:
	lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js

Conflicts:
	lib/db/services.php
	version.php

Dan Poltawski authored Apr 01, 2015 and Eloy Lafuente committed Apr 02, 2015

This reverts commit 19ffcbe2, reversing
changes made to 2112dd44.

Conflicts:
	lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js

The commit also include some clean-up

Added a new set to set config using set_config() api
to make steps faster and more efficient

Conflicts:
	lib/db/services.php

Conflicts:
	lib/db/services.php

This removes the need to write tempfiles in these locations.

We now abstract the actual file generation to a new function.
We are then able to call this function from the other image generation
sources. This allows us to generate thumbnails in a more efficient manner.

* Stored files stay as stored files and are not temporarily re-written to
  disk;
* Strings containing an image remain as a variable and are not temporarily
  written to disk; and
* Arbitrary files are not captured to string.

Conflicts:
	lib/editor/atto/yui/build/moodle-editor_atto-editor/moodle-editor_atto-editor-min.js