Ruby: Fix mutable backtrace
Draft NOTES for 1.11.3
Added 1848 to the notes
Added two closed issues to the NOTES
Revert "Fixed r.literal in update."

This reverts commit 7c1fee79cb44414e387dbb36de0b2545a6d10f97.
Removed issue 1839 from the NOTES
add missing table_drop statements to the reql tests
Ruby driver: Version 1.11.0.2
Merge v1.11.3 into next