Fix building when some of the built files are symbolic links
fix issue #411
add ability to preserve eg directory
update changelog
avoid duplicate code
avoid even more duplicate code
allow track_features in ~/.condarc
update changelog
Conda config: automatically add the 'defaults' channel

Only do this when the channels key is created (or the .condarc file is
created). Without this, anyone who runs

  $ conda config --add channels favorite_binstar_channel

will get a broken conda, because it will no longer use the Anaconda channels.

If you don't want this behavior, just add a --remove channels defaults.

Fixes #419.
update changelog
add debug info
improve output when no recipe is found, see issue #426
more error handling
update changelog
add ability to set build string, closes issue #425
update changes
improve error checking for package name, version and build string
Move broken packages to conda-bld/broken

This prevents them from being included in further builds.

Fixes #370.
Update CHANGELOG
Update list of rc keys, and add soft test to make sure it stays up-to-date