Cache: add seccond mtime field
Cache: bookkeeping of storage_mtime
Emulate touch() for backends that don't support it
merge master into filecache_mtime
Merge branch 'master' into filecache_mtime

Conflicts:
	lib/files/view.php
	lib/util.php
	tests/lib/files/cache/cache.php
New hook system
fix typo
Prevent backgroundScan() from looping if opendir() is failing for the same path
Merge branch 'master' into hooks
Port OC.dialogs to use octemplate except for prompt() and form().
Also load octemplate per default.
Port OC.dialogs to use octemplate except for prompt() and form().
Also load octemplate per default.
Line length etc.
Merge branch 'oc_dialogs_oc_template' of github.com:owncloud/core into oc_dialogs_oc_template

Conflicts:
	core/js/oc-dialogs.js
Various cleanups in OC.dialogs
Dialogs: Make slug show last dir emphasized.
Dialogs: Loose up-button.
Dialogs: Cleanup.
Dialogs: Fix method names.
cleanup after people who don't test in ie
Dialogs: Home folder icon instead of '/'.