added explanation bubbles to overview
added bubbles to room manager
added bubbles to association manager
added bubbles to association man and flatmate man
added bubbles to payment manager
added bubbles to distribution manager
added bubbles to the invoice manager
added line break to allow full display of long tables without footline
overlapping. corrected typo in overview.
corrected texts, added translations
added some headlines
Merge branch 'devel' into multiuser

Conflicts:
	locale/de.php
	templates/association_man.php
	templates/distribution_man.php
	templates/foot.php
	templates/invoice_man.php
	templates/overview.php
	templates/payment_man.php
	templates/room_man.php
	templates/style.css
added texts and translations
fixed bubble bug
Merge branch 'devel' into multiuser
improved translation
improved translation
fixed bug: association man no longer shown, if no flatmates listed
Merge branch 'devel' into multiuser

Conflicts:
	locale/de.php
added translation, fixed bug
Merge branch 'devel' into multiuser

Conflicts:
	locale/de.php