Accomodate pbcore FastaIO changes

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119019]
Remove last vestiges of "ref000..." nonsense

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119171]
Comparisons to None should use "is"

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119172]
Emit xunit XML

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119249]
Some noodling with the training

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119252]
Move training script out of distribution.

[Tracking bug 21562]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 119255]