Updating blast_db option type in all needed scripts
Fixing a small bug in blast_db option type
Fixing usage examples
Adding folder in qiime_test_data for identify_chimeric_seqs.py
Fixing typo on db checking
Merge branch 'master' of github.com:qiime/qiime into update_blast_db
Fixing blast_db option bug
Merge pull request #925 from josenavas/update_blast_db

Update the blast_db option type across all QIIME scripts