v1.3. Enforce argument types better (raskhadafi).

v1.2.2. Support for some changes from Ruby 1.9.1 to 1.9.2 (dmarkow).

v1.2. Ruby 1.9 compatibility (ph7).

v1.1. Would be nice if it actually compiled again.

v1.0. Documentation.

v0.3. Fix OS X compilation problem; Rubyforge release.
