Commits for greg

v270_base to v271_preview (2012-07-17 to 2012-07-24) v271

• Added mention of teh define regions button
  • src/hg/htdocs/goldenPath/help/hgTablesHelp.html - lines changed 4, context: html, text, full: html, text
• Added info about the define regions button
  • src/hg/hgTables/usage.c - lines changed 5, context: html, text, full: html, text