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

#This is a sample file distributed with Galaxy that enables tools
#to use a directory of metagenomics files.  
#file has this format (white space characters are TAB characters):
#
# lookup files from:   http://www.mothur.org/wiki/Lookup_files
#
#<name>	<file_base>
#
#GS20	/project/db/galaxy/mothur/lookup/LookUp_GS20.pat
#GSFLX	/project/db/galaxy/mothur/lookup/LookUp_GSFLX.pat
#Titanium	/project/db/galaxy/mothur/lookup/LookUp_Titanium.pat