Clean up \OC\Util

 - Use camelCase

 - Add some phpdoc

 - Fix some indents

 - Use some more spacing
remove editor div in filelist
refactor OC.Breadcrumbs, allow injection of container to allow rendering crumbs into full screen editor
Remove disconnect function from OC_DB
also emit hooks for views that are a subfolder of the user folder
Fix some naming and spacing in lib/util.php
Merge branch 'master' into clean_up_util

Conflicts:
	lib/util.php
fixing typos
Fix some phpdoc and camelcase
test case for hooks send from a non-default view
Workaround for IE 9 & 10 for clicking filelist after adding new item
fix coding style for controls bar
adjust right padding of controls bar, fix #4650
fix issues caused by introduction of sticky Apps management footer
Fix #4258, clean up \OC_Image and improve its unittest
text centered horizontally and vertically in emptycontent div
rename emptyfolder to emptycontent
remove knowledgebase calls that are no longer used in ownCloud 5/6
remove the config option that is no longer needed
remove the activity call here. it is not implemented anyways. This will be provided by Activity app in the future.