add test for mixed-lib input
remove legacy function _get_data_old() which is no longer called
check for duplicated input files (often a result of copy & paste)
add test for duplicated input files
make unp part of the distribution; add a test for compressed files
bug fix
Merge pull request #211 from levinas/ff

fixes for multiple milestone issues
Fix: compressed files with data id
velvet plugin: catch invalid filetype
wasp: remove debug statement
Merge branch 'dev' of github.com:kbase/assembly into cb