1.7.3

Enhancements:

• Python tar extraction now used as a fallback if libarchive fails

Bug fixes:

• Fix binsort's mangling of symlinks
• Fix #71, larger directories fail to extract using libarchive
• When testing that exceptions are raised or archives containing abs paths, first check that such a "broken" archive was created during test setup... otherwise skip the test.
• api.create now raises an error correctly if archive creation failed or extension is not supported.
• Travis CI issue now resolved, mock added as dependency for conda test environments and system dependencies
• Fixed bug where extract parser cli failed due to not having out_folder attribute.

Contributors:

• @mingwandroid
• @leej3
• @beckermr
• @seemethere