3.11.1
======
* yelp-build: Handle conditional processing and other logic when copying
  media and other external files, #709951
* yelp-check: Support validate on DocBook 5 documents
* yelp-check: Support explicitly allowed namespaces in strict validation
* yelp-check: Fixed POSIX shell syntax error, #710331 (Michael Biebl)
* yelp-new: Now much smarter about output file paths and extensions
* yelp.m4: Added HELP_MEDIA_NODUP to install media without locale symlinks
* yelp.m4: Added YELP_INIT_HELP as version-checking replacement for
  YELP_HELP_INIT