Sort the seq_region_ids in multi-segment queries.

RepeatFeature adaptor uses it.  Don't seem to make a difference to
timing results though.

collection entries.  Fixes problem with binning introduced with the
previous check-in.

  If a slice, for a particular coordinate system, projects onto more
  than two segments, do not involve seq_region_start and seq_region_end
  in the SQL for the "middle slices".

The compact representation of a feature now also contains the
seq_region_id as the second array entry.

a slice fetches.

Added kill_reason and strip_UTR - two attribs used to show why transcripts were
removed/changed, for genebuilder use in databases of killed structures

  collection()

A feature collection is a compact representation of the features of a
certain type on a particular slice.

This is work in progress.

Change a croak() into a carp().
Status interval at 30s.
Store the stable ID as the accession for the Name.

ignore any name that is the same but with a different case variation.

These are parsed earlier in the pipeline and we should not add these
accessions as Xrefs, and we should only add direct Xrefs to them if they
exists since previously.

gene names will upset things (non-unique index entries for e.g. 'mio'
and 'Mio').

Pretty summary.
Pretty status log every 10s.

Done.

once.

Will try to store Xrefs more than once.