Shouldn't cause *any* functional changes, but is more correct.

Ouch!

By default shape at upem (or ppem), and scale results.
Similar to work done in CoreText backend, but using upem as default.

To be turned into a useful HB_DEBUG_SHAPE infrastructure...

Ie, don't call get_positions() if positions are not
requested for serialization.

Needed for upcoming debug output changes.

See comments.

http://crbug.com/419769

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=64501

Fixes https://github.com/behdad/harfbuzz/pull/124

Fixes tests/cluster.

Fixes https://github.com/behdad/harfbuzz/pull/123

For https://github.com/behdad/harfbuzz/pull/123
Currently fails.  Fix coming.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=91559

fix static linking with icu-uc

When linking test-unicode statically it needs $(ICU_LIBS)
which contains all required flags.
Especially -lstdc++.

Fixes:
http://autobuild.buildroot.net/results/210/2107f9dfb39eeb6559fb4271c7af8b39aef521ca/Signed-off-by: NRomain Naour <romain.naour@openwide.fr>

This adds support for Unicode 8.0 and fixes a bug with wrong properties
for ranges of codepoints.

Ouch!

New Tai Lue changed encoding to visual, boring, model.

Ouch.

Fixes https://github.com/behdad/harfbuzz/issues/63