Added GEO links.
Experiment 'other identifiers' now link to genome browser.
Merge branch 'master' into dbxref-links-1200
OOps, removing some debugging code.
Fixed external resoure links in Targets that were broken.
dbxrefs may not be unique.
Merge pull request #159 from ENCODE-DCC/dbxref-links-1200

Dbxref links 1200