Log Message:
Update p5-Unicode-CheckUTF8 to 1.03.

Changes from previous:
1.03 (2010-12-20)
   - patch from Andrea Nall to use STRLEN in XS, preventing crash
     on 64-bit systems in some cases.  also const-ify stuff.

1.02 (unreleased)
   - more tests from other utf8 scripts I had around
   - test plans