[DAS2] biopackages DAS/2 server passed validation

[Brian O'Connor]

Hi,

I finished validating the DAS/2 server at biopackages.net using Andrew's 
validator.  After making a few small tweaks all document types pass. 
Here are the URLs I validated with:

* http://das.biopackages.net/das/genome
* http://das.biopackages.net/das/genome/human/17/segment
* http://das.biopackages.net/das/genome/human/17/type
* 
http://das.biopackages.net/das/genome/human/17/feature?segment=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fgenome%2FH_sapiens%2FB36.1%2Fdna%2Fchr1;overlaps=1:1000

I also fixed the bug with the "type" attribute in the CAPABILITY 
elements.  They now are "features", "types", or "segments" to be 
compliant with the spec.

--Brian