Commits for galt

v322_base to v323_preview (2015-09-14 to 2015-09-21) v323

• Initial checkin of changes for cached udc redirect support.
  
  • src/lib/udc.c - lines changed 63, context: html, text, full: html, text
• Using more efficient redirect method. Because the net functions do not make it easy to use HEAD instead of GET and save the header lines in a hash, without some major reworking of net.c, this is the best we can do.
  
  • src/lib/udc.c - lines changed 40, context: html, text, full: html, text
• fixed so that redir does not store params like password and byterange. Instead, I made a function in net.c to do it and now call it to apply those extra params later at runtime. This is both more secure and correct.
  
  • src/inc/net.h - lines changed 3, context: html, text, full: html, text
  • src/lib/net.c - lines changed 44, context: html, text, full: html, text
  • src/lib/udc.c - lines changed 28, context: html, text, full: html, text
• optimize code to check the old value and see if there is any change, before just writing the new redir value. Also moved the code into a new subroutine
  
  • src/lib/udc.c - lines changed 67, context: html, text, full: html, text
• This extra condition has been missing since 2011-10-21.
  
  • src/lib/net.c - lines changed 1, context: html, text, full: html, text
• Fixes mayOpen for transparent case when the file does not exist. Do not errAbort, return NULL instead. Hiram ran into this with his wiggle utilities.
  
  • src/lib/udc.c - lines changed 2, context: html, text, full: html, text
• Merge branch 'udcRedirect'