KAZOO-661: continue to conditionally import hold_music as the ramifications of not doing so are unclear
KAZOO-731: cost wrongly calculated in cdr and transactions views
https://2600hz.atlassian.net/browse/KAZOO-731
SOLVED - issue KAZOO-786: floor and ceiling functions
https://2600hz.atlassian.net/browse/KAZOO-786
KAZOO-731: formating tweak
resolve KAZOO-799: pass consumer_pid to spawnd processes
KAZOO-798: Add unit test/Remove io:format