Fixes courtesy of Peter Briggs: metagenomics.py: - Groups class: Fix for when second column not present - Axes class: make 'sniff' method more sensitive to try and restrict arbitrary tabular data uploads being sniffed as this type mothur_wrapper.py: - update cmd_dict['chimera.perseus'], to use correct inputs - add --beta option (needed for chimera.perseus tool) - add function for converting input floats from scientific notation (e.g. 1e-6, which mothur can't handle) to decimal format (e.g. 0.00001, which it can) chimera.perseus.xml: - add output data item for the "accnos" file (not previous captured in the history) trim.flows.xml: - cosmetic change: base name for additional output data items is now "trim.flows", rather than "logfile" (clarifies history items) shhh.flows.xml: - cosmetic change: update default value specified in help for mindiff to be consistent with that given in the mothur documentation