~jaro/balkon

ref: 7d61f16b92c0af371b08e0c97c50934bfc4b9e4b 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.