Login usability

[Jan Oliver Rüdiger]

Login-Mask

Old Theme:

1. Direct login on the start page

New Theme:

1. First you must find the button, because it's out of the hotspot corners AND the "register for free" button is the only button who catch the attention (diffrent color). The page center is an area of lowest attention.

2. You must click this button - goto - is always bad for usability reasons.

3. You can login.

[Daniel Zoller]

fixed with #2253