app controller for sortmerna
class IndexDB added for sortmerna
app controller for sortmerna finished, working on unit tests
add more test cases
test cases finished for sortmerna app controller
sumaclust app controller
sumaclust removed from branch
updates to tests
changed picked to sortmerna output filenames as default in indexdb_default_param
updated app controller to return clusters, failures and files to remove; updated tests to conform
added multithreading to sortmerna
pep8 executed, library declarations reordered
reordered imports
edited exit statements to use raise
unused imports removed
added more tests
pep8 compliant
hashbang removed
Merge pull request #32 from ekopylova/sortmerna-api

Thanks @ekopylova
Merge branch 'master' of https://github.com/biocore/brokit into add-sumaclust

merging with master upstream for latest changes