webos*submissions: update bbclasses for webos-ports needs

* always append +gitr${SRCPV} in PV
* skip sanity check for tags when webos-ports-submissions is used
* use different prefix for webos_enhanced_submissions and
  webos-ports-submissions
* now we don't need any specific changes in each recipe, just inherit
  webos-ports-submissions and set SRCREV

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
recipes: drop all PR/PR_append/PRINC

* there is a plan to remove PRINC support
  let's remove all PR/PR_append/PRINC till we don't
  need to support upgrade path (which is already broken
  by PR_appends

  http://lists.openembedded.org/pipermail/openembedded-core/2013-May/079145.html

  also merge two consecutive blank lines in edited files
  (in most cases created by ^PR.* removal:
  for i in `git grep "\(\(^PR[ =]\)\|\(^PRINC[ =]\)\|\(^PR_append[= ]\)\|\(^EXTENDPRAUTO_append[= ]\)\)"| sed 's/:.*//g' | xargs`; do sed -i "/\(\(^PR[ =]\)\|\(^PRINC[ =]\)\|\(^PR_append[= ]\)\|\(^EXTENDPRAUTO_append[= ]\)\)/d" $i; sed -i "/^$/N;s/^\n$//g" $i; done

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>