[i18n] New Corrections for RTL UI

[Chuck Hagenbuch]

Quoting persian-horde at metanetworking.com:

> We continue working on correcting UI problems in RTL languages, and we
> fixed most of alignments and floats, on Horde Head and IMP Head.

Great!

> We have also added 4 reversed images for RTL languages for better
> appearance, and edit some portions of code to display these reversed
> images in RTL languages.

Why not give the rtl theme a custom image set, and include these in it? 
Would leave the code cleaner...

-chuck

-- 
"But she goes not abroad in search of monsters to destroy." - John 
Quincy Adams