Commits for braney

v286_base to v287_preview (2013-07-09 to 2013-07-16) v287

• resolve newly introduced error in menu bar, notify users that hgVai doesn't work with assembly hubs, and resolve caching problems with assembly hubs (set udc cache timeout before opening hubs (otherwise the default is 0), don't open 2bit files until they are actually used)
  • src/hg/hgTracks/menu.c - lines changed 5, context: html, text, full: html, text
  • src/hg/hgVai/hgVai.c - lines changed 2, context: html, text, full: html, text
  • src/hg/inc/hui.h - lines changed 3, context: html, text, full: html, text
  • src/hg/lib/cart.c - lines changed 1, context: html, text, full: html, text
  • src/hg/lib/hui.c - lines changed 8, context: html, text, full: html, text
  • src/hg/lib/trackHub.c - lines changed 5, context: html, text, full: html, text
• some cleanup of assembly hubs: require organism and defaultPos, tolerate missing scientificName, groups, htmlPath and orderKey. Fix weird bug with wikiTrack missing a settingsHash.
  • src/hg/hgGateway/hgGateway.c - lines changed 1, context: html, text, full: html, text
  • src/hg/hgTables/hgTables.c - lines changed 1, context: html, text, full: html, text
  • src/hg/hgTables/wikiTrack.c - lines changed 1, context: html, text, full: html, text
  • src/hg/lib/hgFind.c - lines changed 4, context: html, text, full: html, text
  • src/hg/lib/trackHub.c - lines changed 15, context: html, text, full: html, text