v1.0.7 Enable for all 1.8.x versions; add fix for 1.8.6 patchlevels < 31

v1.0.6 Try again for 1.8.5.

v1.0.5 Backwards compatibility tweak for 1.8.5

v1.0.4 Fix for JRuby, and re-enable fastthread for 1.8.6p111

v1.0.3. Make native build a noop on Rubies that have no real need for fastthread

v1.0.2. Merged stale wait entries fixes from ruby_1_8, fixed SizedQueue#enq

v1.0.1. Signed gem.