~jaro/balkon

ref: 95419098143a3dbd3a78b67ef5ca824a5c3fdd0c balkon/.golden/arabicFiller20em d---------
Implement trimming spaces at end of lines.
Make paragraphRect origin always 0,0.

This convention should make it easier for the caller to properly place
the paragraph within a document.
Add test for RTL text.