rhead: changes by commit

branch to review (2010-04-06 to 2010-04-13) v229

• Changed UW DNase DGF track from release alpha to release alpha,beta.
  • src/hg/makeDb/trackDb/human/hg18/trackDb.wgEncode.ra 1.942 - lines changed: 21, context: html, text, full: html, text