Normally a browser window will be large enough that the bar is wider
than 100px so we can use decimals to display the real usage more
closely.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

The text will stay in it's place, but 0% usage will lead to an empty
bar.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Created the following function:
 - checkLoggedIn
 - checkAdminUser
 - redirectToDefaultPage

One central place to check for https.

make the help section working and pretty. knowledge base entries are fetched via OCS from a different server. cool stuff