Commits for braney

v269_preview2 to v269_base (2012-06-19 to 2012-06-26) v269

• adding twoBitDup, a utility to list the sequences in a twoBit that appear more than once (by value, not name).
  • src/makefile - lines changed 1, context: html, text, full: html, text
• add filtering fields for bigWig custom tracks (#7013)
  • src/hg/hgTables/filterFields.c - lines changed 2, context: html, text, full: html, text