[DAS2] Human prototype server up

[Allen Day]

Contains UCSC Hg17 knownGene, as well as all Affymetrix "target" sequences
aligned to the genome w/ > 90% identity.

http://das.biopackages.net/das/genome/chado/chado-Hsa-17/region

Here's a URL to get you going.  This is running on 2 hosts: a dual
opteron/8GB webserver frontend and a dual opteron/16GB database backend.  
There are no other applications on these hosts right now, so hammer away.

You might want to use HTTP 1.1 keepalive though, the responses can be
*really* slow for /feature requests on large regions.  The reason for this
is the feature/part subpart requests are done feature by feature due to
the 1-many relationship... I'm still trying to figure out how to improve
this.

Components that aren't working in even a basic way:

  * alignments
  * assemblies
  * individual /feature/<id> requests
  * versioned source response w/ supported formats
  * most feature filters (overlaps, type, and exacttype work)

-Allen