Fix for #2461 JS driver lost variable digits
First shot at feeds
Print an error when a feed is returned in the data explorer
Callback should be called once
Working on test... switching network
WIP - Push for 2485
Basic interface + test for feeds
Add EventEmitter interface
Made changefeeds not work with data explorer.
Merge branch 'mlucy_2479_fix' into michel_2454_feeds
Better error message for feeds in the data explorer
Fix error message
More tests for feeds and the JS driver
Fixed a concurrency bug in changefeeds.
New parse_string cJSON code from upstream.
New parse_string cJSON code from upstream.

Conflicts:

	src/http/json/cJSON.cc
Fix for a regression in our cJSON variant.
Fix for a regression in our cJSON variant.
making r.http errors recoverable and include header/body data
Merge branch 'v1.12.x' into next