change to throw if dbpattern isn't found

A mapper method for running exonerate jobs inline on the local machine, without using bsub. Useful for debug

Fixed bug in handling LOCAL: files; now the specified file is checksum-ed, rather than a non-existent file

Fixed bug in validate_sources. Now uses the number of rows returned (rather than the row data) to validate the source

Can now support oligonucleotide microarrays other than Affy.
The three affy_* tables are changed to oligo_* tables. New fields are:
  oligo_array.type (currently either AFFY or OLIGO)
  oligo_probe.length
  oligo_probe.description
The existing Affy objects become subclasses of new Oligo objects, but
the API is backwards compatible, so existing pipeline and Web code won't
need changing.

if 'initial_met'

Changed to use info_type & info_text to store projection information rather than rewriting display_label.