Changed multiple select for days of weekend to 'chosen'. Cleaned up some code. Removed success message when changing timezone.

add status file. useful for external administration. show the ownClopud version at least in the config dialog.

Create OC_JSON class, for single point of creating json responses.
No real logic change, this just cleans up the code a bit.

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.