mage page title aware of ownCloud edition

Conflicts:

	core/templates/layout.user.php
make footer aware of ownCloud editions
keep all strings in one place to make it easier to change them
make footer and urls aware of ownCloud editions
add default doc url
make main menu aware of the different owncloud editions
make pub link share footer aware of different owncloud editions
short explanation about OC_Defaults
move common settings footer fieldset out of conditional
don't show translation hints in enterprise edition

Conflicts:

	settings/templates/personal.php
add logo-claim
improved footer