Implemented deplete_blastn_prep.
Merge branch 'master' into irwin-taxon_filter
Implemented deplete_blastn and fix_mate_pair_info without testing.
Created TestCaseWithTmp and derived from it in all tests that setUp and tearDown tmpDir.
Debugged and added test for deplete_blastn.
Added TestFixMatePairInfo.
Renamed fix_mate_pair_info to purge_unmated; reordered input file.
Created util/read_utils.py; moved purge_unmated there.
Created test_read_utils; moved TestPurgeUnmated there.
Added fastq_to_fasta. Moved read_utils from utils to top level since it has command-line commands; save utils for python-callable utilities.
Added fastq_to_bam (without a test).
Implemented bam_to_fastq (without test). Replaced most fastq_to_bam optional arguments with picardOptions.
Added test for fastq_to_bam and bam_to_fastq.
Removed long comment with recipes from taxon_filter.py.
Added read_utils to nosetests in .travis.yml
Disallowed CREATE_MD5_FILE in fastq_to_bam if --header is specified.
Stopped setting date in test_fastq_bam to avoid time-zone incompatibility when running on Travis.
Merge pull request #34 from broadinstitute/irwin-taxon_filter

Irwin taxon filter