fix navbar from showing empty category

When all modules for a certain category have been disabled, don't show the category menu
fix sidebar from showing empty category

When all modules for a certain category have been disabled, don't show the category menu
Merge pull request #95 from opensaucesystems/master

Fix navbar and sidebar from showing empty category
Update Roundcube to 1.0.4

must be used in conjonction with preconf & installer update