Enhancements:
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* Add --extra-specs to conda skeleton. Use when a package needs to be available in the temporary env that parses setup.py to make the skeleton. #1697
* Allow wheels as a source format #1700
* Allow github urls as CRAN skeleton sources #1710
Bug fixes:
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* exclude package/name field from uses_vcs_in_{meta,build} checks #1696
* Fix conda convert wrt info/paths.json (for conda 4.3 compatibility) #1701
* update cpan skeleton to use newer API url, fix conda exception handling #1704
* update R default version to 3.3.2 #1707
* fix attribute error on exception handling (better fix on the way) #1709
* fix bundle_conda removing project files when conda recipe was in the source tree, and utilized relative paths #1715
* fix glob trying to interpret filenames that look like glob patterns #1717