CAT v5.2

Notable changes

• A big update to the database files: CAT prepare now uses a new mapping file that allows us to assign taxids to up to 20% more proteins than with the previous prot.accession2taxid file. A big shout-out to NCBI for picking up our bug report and combining information from multiple resources into a single mapping file!
• Another update to CAT prepare: file integrity of downloads is assessed based on md5 checksums.
• Change to the output files: the ORF2LCA output file contains a new column for the number of hits the classification is based on.
• Change to the output files: the 'classification' column in the output files previously contained the verdicts classified and unclassified. These two options are now called taxid assigned and no taxid assigned, respectively, in order to prevent confusion about cases where a contig or bin is classified but does not have a classification up to rank superkingdom.
• Change to the output files: while converting to official ranks with CAT add_names, if a classification does not go to lower ranks this is now called no support as opposed to the previous not classified. This should prevent confusion about the meaning of 'classified' even further!