Commits for kuhn

v297_preview2 to v297_base (2014-03-10 to 2014-03-17) v297

• changed menuparent tag =last= to About Us link, per Jonathan. refs #12853
  • src/hg/htdocs/inc/globalNavBar.inc - lines changed 2, context: html, text, full: html, text
• added a 100X zoom-out button. working with Jonathan. refs #7475
  • src/hg/hgTracks/hgTracks.c - lines changed 9, context: html, text, full: html, text
  • src/hg/inc/hui.h - lines changed 1, context: html, text, full: html, text
  • src/hg/lib/hui.c - lines changed 1, context: html, text, full: html, text