IVR performance enhancement
Enables precaching of first ivr response
Adds comment
Shortens timeout on single-select questions for kookoo ivr
Keeps precached first response and flag consistent
all known API incoming messages should get billables created
pull out billable chunk
standardize billable creation for mach and tropo
standardize billable creation for unicel---incoming all gets processed in sms.api
Merge pull request #646 from dimagi/gc-dev

IVR Performance Enhancements
make elastic timeout configurable and bump it up for case reindex
add calculation for inactive mobile users
Merge pull request #655 from dimagi/project-attributes

add calculation for inactive mobile users
Merge pull request #654 from dimagi/cz

make elastic timeout configurable and bump it up for case reindex
set timeout on the right class
Merge pull request #656 from dimagi/cz

set timeout on the right class
Revert ""update elastic case index to only delimit on whitespace by default"""

This reverts commit a9037ab161bff855af9dc92d2aa072dfb12f12c2.
Merge pull request #657 from dimagi/cz

Revert "update elastic case index to only delimit on whitespace by default"
fix repeater test (30 minutes => 60 minutes)
Merge pull request #658 from dimagi/fix-repeater-test

fix repeater test (30 minutes => 60 minutes)