misc-fixes: filter_undefined respects atom entries
misc-fixes: treat warnings as errors

tired of cleaning up unused var warnings! :)

also update some unit tests to run again
misc-fixes: force warnings as errors in applications
misc-fixes: move resolve_uri/2 to util
remove docs
misc-fixes: remove dead code
misc-fixes: remove dead code
misc-fixes: remove dead code
misc-fixes: remove dead code
Merge pull request #435 from 2600hz/misc-fixes

Misc fixes