added sort to get_headers_and_readers
created more tests
fixed key splitting bug with gene names containing underscores.
Update README.md
added sorting to headers_and_readers
Merge branch 'release-0.1' into develop
readme
merged develop
added more tests to tag_mutect
Merge branch 'develop' of
https://github.com/umich-brcf-bioinf/ExomeSeqPipeline.git into develop

Conflicts:
	README.md
added more functionality to tag_mutect
fixed filename bug
fixed sample name issue. added tests
Started FileProcessor metaheader handling
Merge branch 'develop' of https://github.com/umich-brcf-bioinf/ExomeSeqPipeline.git into develop
changed snpEff rollup to use roman-numeral-looking values rather than
arbitrary scoring values
made tests pass
added method to check if file was run through mutect
edited requirements.txt
fixed multiple sample/multiple tag issue