Revision history for Perl extension invoker

0.29_003  Sun Jan 16 02:11:31 CST 2011
        - a saner implementation that works on more complicated statements.

0.29_002  Sat Jan 15 23:42:13 CST 2011
        - Fix compiling on threaded perl

0.29_001  Sat Jan 15 21:25:29 CST 2011
        - original version