Fix an error message.
   bug	22808

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbalign/": change = 127115]
   Add missing data for cram tests.
   bug 22808

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbalign/": change = 127237]
   Add an example of using pbalign with --forQuiver to howto.rst.
   bug 22808

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/pbalign/": change = 127736]