Commits for braney

v280_preview2 to v280_base (2013-02-26 to 2013-03-05) v280

• some assembly hub fixes (non-chrom sequence dump, don't open db when not needed) #8072
  • src/hg/hgTracks/hgTracks.c - lines changed 88, context: html, text, full: html, text
  • src/hg/hgc/hgc.c - lines changed 2, context: html, text, full: html, text
• move hasProtocol() function from common.c to net.c (code review #10278)
  • src/hg/lib/trackHub.c - lines changed 1, context: html, text, full: html, text
  • src/inc/common.h - lines changed 3, context: html, text, full: html, text
  • src/inc/net.h - lines changed 2, context: html, text, full: html, text
  • src/lib/common.c - lines changed 7, context: html, text, full: html, text
  • src/lib/net.c - lines changed 5, context: html, text, full: html, text
  • src/lib/twoBit.c - lines changed 1, context: html, text, full: html, text
• support drag-select in ideogram even if it has only one bar (#10285)
  • src/hg/js/hgTracks.js - lines changed 1, context: html, text, full: html, text