[oe] Bitbake 1.8.18 released!

[Richard Purdie]

Bitbake 1.8.18 has been released.

Some fixes have emerged that are important enough to warrant another
release including some issues with the last release not allowing all the
improvements OE wished to make to its core.

This release can be downloaded at:

http://prdownload.berlios.de/bitbake/bitbake-1.8.18.tar.gz

Changes since the last release:

Chris Conroy (1):
      providers.py: Fix package sorting order to reflect priorities

Denys Dmytriyenko (1):
      utils.py: add special handling for version delimiters

Richard Purdie (6):
      Increment version post release
      git.py: Search mirrors for tarballs before fetching, not just local directories
      fetch/__init__.py: Fix a bug where errors could corrupt bitbake internal state wrt SRCREVINACTION (from Poky)
      fetch/__init__.py: Allow SRC_URI to be overridden in fetcher go() function
      BBHandler.py: Backport anonymous function handling improvements from 1.10 branch
      Release 1.8.18