* Fix letter spacing
* Add \rSTYLENAME syntax support (GC #43)
* Fix border generation and border style reset (GC #56)
* Fix various issues with bug-for-bug compatibility of
transformations (\fax, \fay, etc.) to VSFilter (GC #46, GC #42)
* Fix drawing parsing (GC #47)
* Various fixes to shaper (GC #54, GC #55, GC#59)
* Fix change detection
* Add ass_set_line_position API to set a vertical subtitle offset
* Fix scaling of drawing baseline offset (\pbo) values
* Fix skipping of zero-width characters for FriBiDi shaper
* Use LTR text base direction by default, similar to VSFilter
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/libass?expand=0&rev=20
