Update README
Fixed headers in profile and test
Fix premature parser exit on }{ in drawing mode

Fixes #75.
Implement fast quad-tree rasterizer in C and x86/SSE2/AVX2

Signed-off-by: Rodger Combs <rodger.combs@gmail.com>
Fix corner case: \move with identical start and end times
mystrtoll: don't truncate to int
Make \be animatable

VSFilter has supported this since version 2.39.

Use the raw floating-point value of the \be argument in the animation
formula, like xy-VSFilter has done since version 3.0.0.45 (404301a3).
Reset clipping mode on every rectangle \clip

Prior to this fix, both of the following:
    \iclip(0,0,9999,9999)\clip(0,0,9999,9999)
    \iclip(0,0,0,0)\clip(0,0,9999,9999)
hid the whole picture in libass. The correct behavior
in both cases is to display the whole picture.
Fix \1a, \2a, \3a, \4a with invalid argument

Reset to the initial color's alpha component, not red.
Skip useless memset() when copying a bitmap
shaper: add FriBidi error handling

It is unlikely, but FriBidi might not process a string correctly,
and we should handle that. Tested by making it fail always. This
should also fix some compiler warnings.
Merge pull request #102 from grigorig/fribidi-errorhandle

shaper: add FriBidi error handling
Use FT_Outline_EmboldenXY if available
Remove bitmap restriding

It turns out we don't need this.
Fix change detection when text is clipped to screen

The glyphs are clipped before combining, so the combined bitmap can
always have the same position, size, and address. This breaks the
change detection. Or at least I think that's what happens.
Add BorderStyle=4, background color for text

This is somewhat similar to BorderStyle=3, but with a number of
differences. Mainly, this new BorderStyle doesn't create overlaps
within an event.

Closes #105.
Merge pull request #100 from astiob/stroke

Use FT_Outline_EmboldenXY
Add a mechanism for selective style overrides

This adds 2 new API functions:

  ass_set_selective_style_override()
  ass_set_selective_style_override_enabled()

They can be used to force dialog text to use a specific ASS_Style. It
uses a fuzzy heuristic for that, and the quality of results may vary.
It does style overriding selectively and tries not to override things
that need explicit styling. The heuristic for that isn't set in stone
either, and can change with future libass versions.

Closes libass#88.
parse_tag: split \fscx, \fscy, \fsc
parse_tag: merge \fs+, \fs-, \fs