Log Message:
Updating time/p5-Calendar-Simple from 1.20nb1 to 1.21

pkgsrc changes:
- add license definition
- don't require a c compiler
- remove executable bits from installed modules

Upstream changes:
2010-04-02  Dave Cross <dave@angel.mag-sol.com>
  * Build.PL: Remove signing.
  * lib/Calendar/Simple.pm: Bump to version 1.21 for release.
  * t/no_dt.t: Patch to fix tests under 5.11.0+. Thanks to Ruslan Zakirov.