Commits for galt

v278_preview to v278_preview2 (2013-01-08 to 2013-01-15) v278

• fixing blat documentation to match our use of stepSize=5 with hgBlat/gfServer which we have been doing since hgPcr came out.
  • src/hg/hgBlat/hgBlat.c - lines changed 38, context: html, text, full: html, text
• calling exit(1) after receiving SIGTERM allows atexit cleanup when apache kills timed-out cgi
  • src/lib/cheapcgi.c - lines changed 18, context: html, text, full: html, text