Working on squash.
Squashing seems to be working for everything except limit changefeeds.
Squash for limit changefeeds.
Removed dead function.
Minor performance improvements.
Added squash to JS and Python drivers.
Update control.in

#3404 some striped out images do not have the ps command needed for restarting the rethinkdb service.
merged
Added tests for squash.
merged
Update control.in
Merge pull request #3406 from wojons/patch-1

Add procps to debian package dependencies
Adds `client_address` and `client_port` to `"query"` `info` field
Fixes review feedback
Preparations for getting rid of btree_erase_range_generic. Added erase option to apply_keyvalue_change. Got rid of some unused code. Added TODO!s
Adding PyYAML PIP URL to import error message
fixing cache balancer not reactivating
fixing typo in stats causing writes to report reads
removing old debug validation code
fixing crash when a stats request times out