Filled username field when oc_username is set repaired.
Problems with "advanced settings" button in installation wizard fixed.
CSS improved - login and installation now looks more clean.
Request password link removed (email feature not implemented yet).
Database radio button bugs removed.
It is possible to have an empty database password, now ownCloud will support this "security issue".
Ignore Mac OS X ".DSstore" files.
Fade in/out of login button and remember checkbox removed due to some display errors.

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

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>

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

- change value to "Please wait...."
- disable all the inputs & buttons
- submit new form, because disabled inputs are not submitted to the server

Removed global vars are DOCUMENTROOT, SERVERROOT, SUBURI, WEBROOT and CONFIG_DATADIRECTORY

Initial work on resetting forgotten passwords. It works, but still need to email a token to allow reset

The search box style is a design decision, search boxes are always styled differently from other inputs.
This reverts commit 9d48ca75.

That way Apps that have a long name (like OpenStreetGame for instance)
show their name troncated instead of continuing over the application frame.