basic tests for fastqs2fast[a|qs].py
Added new tests for index_fasta.py. Translators still untested
Various minor fixes to index_fasta, mostly pointing the main script to IndexFasta rather than internal functions
Merge branch 'index_fasta_fixes' into ian_tests
Removed extranous file
Merge branch 'index_fasta_fixes' into Scrum-apr-14
Merge branch 'ian_tests' into Scrum-apr-14