Core sessionheartbeatconfig

Fixed unit test scripts + coverage

Added .jshintrc

Change misleading message when file size exceeds upload limit

Allow getting info or renaming part files through WebDAV

Move core setup code to controller class

Add Memcache to the public api

add test for the password remove method

When session_keepalive is true (default) the heartbeat will be send as
often as the half of the session timeout value.

better picture icon, fix https://github.com/owncloud/apps/issues/1401

ellipsize long modified dates to make room for showing delete button

remove needless element tag from the ocs share api

wrap stat() call in a try/catch block

Mark an app as loaded before we start loading it

init_var and init_radio  where only used in the installation template

Conflicts:
	core/setup.php

Fixed image preview in trashbin subdirs

Slightly better looking file actions. 

Conflicts:
	apps/files/templates/index.php
	apps/files_sharing/templates/public.php

- fixed file name validation unit test
- added "\n" as forbidden character in isFileNameValid()

- Also fixes a few JSHint warnings in files app
- Added "global" comment on top of files app to suppress warning and
  also inform devs about what globals are use

Note that it doesn't work 100% like the PHP functions so the tests
have TODO comments to fix those core functions eventually.

Tried to add more apps (others break).
"preprocessors" is now populated automatically based on the tested apps.

- rename action is now checked inside of ".nametext" element
- added test to ensure that display() correctly resets all actions
  including the rename one