Enhancements:
-------------

* add CLI flag and condarc setting to disable --force for anaconda upload  #2047
* add doc_source_url to allowed fields in about section  #2048
* add a second pass for getting information from setup.py that is performed in
  the build environment, so that version-specific logic in setup.py should work.
  #2071
* add semicolons to print statements in test files to avoid errors with Perl.  #2012 #2089
* pass through more CPU-specific environment variables on windows  #2072
* pass through DISPLAY environment variable on Linux  #2098
* Improve conda_interface for better conda 4.4 and later 4.3.x releases  #2113
* skeleton pypi & lua: replace legacy noarch syntax with conda 4.3 style  #2120
* Restore --keep-old-work flag: works like --dirty to leave your build intermediaries, but does not reuse build folders like --dirty.  #2119
* Speed up and fix-up conda-convert  #2116 #2123

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

* fix test/imports with multiple language entries  #1967
* add missing six dependency in conda recipe for conda-build  #2063
* fix dependency addition when converting packages  #2091
* don't set build_id in test phase when --no-build-id is given #2100
* fix handling of string literals not being lists in test requirements from setup.py #2107