Added ability to project (apparent)one2many orthologs as well. Multiple targets are labeled "1 of 2", "2 of 2" etc

No longer mandatory to specify compara database on command-line; will use first one defined in registry file if not specified on the command line.

Prevent race condition which could lead to confusing results if two projections to the same target (e.g. human-dog and mouse-dog) were run in parallel.

Added ability to project gene descriptions as well as names etc. Projected descriptions are currently stored the 'old' way, i.e. in the actual gene description field rather than in the info_* fields in the xref table.

Change in UNIQUE index on xref results in many more GO terms (apparently) being projected, but this is because the same GO term projected from multiple sources now gets multiple rows in the xref table, whereas before, because info_type/info_text wasn't being considered, only one row would have been created.

Also removed obselte delete statements dealing with previous way of labelling projected terms (%[from%).