Updating YAML module for Perl programming language in textproc/p5-YAML from
0.72nb1 to 0.77.

pkgsrc changes:
- none yet, even if distribution switched from bundled Module::Install to
  bundled Module::Package (seems to be derived from Module::Install), but
  fails clean .packlist creation when older version is installed.
  Might need some cleanup some fine day.

Upstream changes:
version: 0.77
date:    Thu Sep 29 18:28:25 CEST 2011
changes:
- Add $VERSION back to all modules.
- Released from Liz++ and Wendy++ garage attic!
---
version: 0.76
date:    Wed Sep 28 12:05:08 CEST 2011
changes:
- Removed YAML::import per mst.
---
version: 0.75
date:    Tue Sep 27 00:46:19 CEST 2011
changes:
- Switch to Mo for OO (YAML::Mo)
- use_test_base in Makefile.PL.
---
version: 0.74
date:    Sun Sep 25 22:05:05 CEST 2011
changes:
- Switch to Module::Package
- Removed extra $VERSION lines from submodules
- Released from Liz++ and Wendy++'s Tool Basement!

---
version: 0.73
date:    Tue Apr 19 20:14:59 EST 2011
changes:
- Apply ANDK's patch for 5.14.0

(sno)