RTL Theme fixes for Moodle 2 (theme/arialist)

Right align course's title
theme/arialist/style/core.css

Notes:

1. DOCK is right aligned correctly due to parent theme/base css code
2. I have left the "above header custom menu" justified to the left since it works best this way.
3. No need to switch blocks columns since this theme has one blocks column (to the right)