Merge branch 'develop' of ssh://git.freepbx.org/freepbx/cdr into develop

# By Bryan Walters
# Via Bryan Walters
* 'develop' of ssh://git.freepbx.org/freepbx/cdr:
  FREEPBX-6123 #resolve Fix content description to be audio file, as it may not always be wav
Merge branch 'master' into develop

* master:
  Version Bump
Merge branch 'master' into develop

* master:
  Merged revisions 16061 via svnmerge from http://www.freepbx.org/v2/svn/modules/branches/2.11
  re #6391 - check if ['limit'] is empty as well as isset
  [Module package script: cdr 2.10.0.7]
  [Auto Checking in outstanding changes in cdr]
  closes #5910 - make rollover help correct and allow Source searches to contain commas
  [Module package script: cdr 2.10.0.6]
  make sure install script all uses remote db for any migrations re #5788
  [Module package script: cdr 2.10.0.5]
  [Auto Checking in outstanding changes in cdr]
  Merged revisions 13994 via svnmerge from http://www.freepbx.org/v2/svn/modules/branches/2.11