Fix expand filespecs#2014

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davidnmurray wants to merge 6 commits intoSciTools:masterfrom

davidnmurray:fix_expand_filespecs

Commits on May 11, 2016

Added a unit test for expand filespecs.
davidnmurray
committed

Commits on May 12, 2016

Commits on May 13, 2016

Readability and pep8 compliance edits
davidnmurray
committed

Commits on May 16, 2016

Addition of sorting to account for dictionaries
davidnmurray
committed

Commits on May 17, 2016

value_lists are now sorted prior to expansion
davidnmurray
committed