* Add build/skip_compile_pyc meta.yaml option.  Use to skip compilation on pyc files listed therein.  #1169
* Add build environment metadata to about.json (conda, conda-build versions, channels, root pkgs) #1407
* Make subdir member of config a derived property, so that setting platform or bits is more direct #1427
* Use subprocess call to windows del function to clear .trash folder, rather than conda.  Big speedup. #1438

Bug fixes:
----------

* fix regression regarding 'config' in pypi skeleton for recipes with entry points #1430
* don't load setup.py data when considering entry points (use only info from meta.yaml) #1431
* fall back to trying to copy files without attributes or metadata if those fail #1436
* Fix permissions on packaged files to be user and group writable, and other readable. #1437
* fix conda develop not respecting python version of target environment #1440