Support for BLAST XML v2

[peterjc]

There is now BLAST XML v2 as of BLAST+ 2.2.31, which will most likely become a second datatype in Galaxy (especially if it has to be a container style datatype with multiple files due to the use of XInclude). i.e. I think blastxml will stay as it is, but we'll probably have to add blastxml2 to Galaxy.

See:

http://www.ncbi.nlm.nih.gov/mailman/pipermail/blast-announce/2015q2/000113.html
ftp://ftp.ncbi.nlm.nih.gov/blast/documents/NEWXML/xml2.pdf
http://www.ncbi.nlm.nih.gov/news/06-16-2015-blast-plus-update/

[peterjc]

There were problems with the initial implementation, see http://blastedbio.blogspot.co.uk/2015/07/blast-xml-2-include-trouble.html

However, BLAST+ 2.2.32 should offer the new XML2 output as a single file, see http://www.ncbi.nlm.nih.gov/mailman/pipermail/blast-announce/2015q4/000118.html

[peterjc]

This will need the new BLAST XML v2 datatype added to the Galaxy core, likewise the new DB format #124.