Commits for markd

v322_preview to v322_preview2 (2015-08-31 to 2015-09-07) v322

• prevent NULL pointer dereference in some unusually chains (no redmine)
  
  • src/hg/hgTracks/chainTrack.c - lines changed 2, context: html, text, full: html, text
• added a easy to use chainToPsl program
  
  • src/hg/mouseStuff/chainToPslBasic/chainToPslBasic.c - lines changed 96, context: html, text, full: html, text
  • src/hg/mouseStuff/chainToPslBasic/makefile - lines changed 3, context: html, text, full: html, text
  • src/hg/mouseStuff/makefile - lines changed 1, context: html, text, full: html, text