Log Message:
py-wheel: updated to 0.30.0

0.30.0:
Added py-limited-api {cp32|cp33|cp34|…} flag to produce cpNN.abi3.{arch} tags \ 
on CPython 3.
Documented the license_file metadata key
Improved Python, abi tagging for wheel convert. Thanks Ales Erjavec.
Fixed > being prepended to lines starting with “From” in the long description
Added support for specifying a build number (as per PEP 427). Thanks Ian Cordasco.
Made the order of files in generated ZIP files deterministic. Thanks Matthias Bach.
Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
Fixed wheel install clobbering existing files
Improved the error message when trying to verify an unsigned wheel file
Removed support for Python 2.6, 3.2 and 3.3.