Update 1.4.4 release notes with last minute fix
Merge commit 'v1.4.4' into HEAD
Docs can have html, we just print one example, replace Ex with Example. Related to #615 and #701
increasing the tcp accept backlog due to it being unreasonably low
Release notes for 1.4.5 and release dates (#743)
made `between` abort earlier if its left key is greater than its right key (c.f. Issue #614)
Fix behavior with curly bracket. Related to #764
Fix issue with context
Removed MCHECK from src/build.mk, errors.hpp/cc.
Removed MCHECK from mk/way/default.mk.
Improved NaN Checking.
Url opens in a new tab now
Improved groupby error message (c.f. Issue #525).
updated yaml docs to say aggregator
Merge branch 'next' into sam_etc_no_mcheck
Merge branch 'michel_701_dataexplorer_docs' into next
Added backtrace-in-coroutine support for OS X.
Merge branch 'next' into sam_165
Removed __MACH__ wrapper around rethinkdb_backtrace in thread_stack_pcs.hpp.
Include execinfo.h for linux backtrace.