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

* Fix package conversion consistency, wrt entry points #1609
* Fix about.json contents regarding development versions of conda/conda-build #1625
* Fix Appveyor for testing against source branches of conda #1628
* Raise exception when SRC_DIR is used in tests, but meta.yaml has no test/source_files entry.  SRC_DIR points at test work folder at test time, for minimal needed changes to recipes - just add test/source_files entry with desired files.  #1630
* Fix features list not allowed to be None in bdist_conda #1636
* Fix undefined reference to locks in copy_into #1637
* Fix version comparison in cpan skeleton #1638
* Add dependency on beautifulsoup4 and chardet to better support strangely encoded text files.  #1641
* Fix not-yet-fully-rendered versions starting with . from raising exception #1644
* Consolidate _check_call and check_call_env in utils.  Fix coercion to string that was missing in latter.  #1645