[livedocs] RTL RFC

hey, i'm going to add RTL support for livedocs. here is my draft plan, base on my experience doing it with the old build system: * make the style_mapping.php per language version: first, already now it contains plain text that have to be changed per language. second, that methos will give me maximum ability for RTL customizing with minmum delta from livedocs, when i can define format_* functions where neeeded (e.g, to add  's and so on.) * on the sapareted style_mapping.php, put dir=rtl on the containers (not the css!) where needed: this will economize the css maintenance for each theme. * move the to the transform and format_* functions the actual language that was processed, to give the format_* functions the freedom display the page ltr if the page wasn't translated. * add direction for some functions to the themes/html_format on the configure level (--with-rtl=yes): this will affect only the selected theme on the configure step and anyway not affect themes that have no support for rtl. * the same for encoding for all the translations (have nothing with the RTL issue just a something that have to be done:). i already did some tests and the result looks nice seem to bypass almost all the issues we have on the old system. comments? --/moshe