KAZOO-2008: docs and logging
KAZOO-2008: remove cb_media's direct use of cb_context
KAZOO-2008: fix spec
KAZOO-2008: handle badlength files with nicer error message
KAZOO-2008: add setters/2 to hide the fold
KAZOO-2008: remove direct cb_context record access
KAZOO-2008: set error resp message
KAZOO-2008: fix how old attachments are removed
Merge pull request #207 from 2600hz/KAZOO-2008

Kazoo 2008