Remove unicode character encoding from ActiveSupport::JSON.encode

The encoding scheme (e.g. ☠ -> "\u2620") was broken for characters
not in the Basic Multilingual Plane.  It is possible to escape them
for json using the weird encoding scheme of a twelve-character
sequence representing the UTF-16 surrogate pair (e.g. '𠜎' ->
"\u270e\u263a") but this wasn't properly handled in the escaping code.
Since raw UTF-8 is allowed in json, it was decided to simply pass
through the raw bytes rather than attempt to escape them.

Backport of https://github.com/zbskii/rails/commit/9ace3a8820a5270f9b3f37b593f8bbea3e940f73

Conflicts:

	activesupport/CHANGELOG.md
	activesupport/lib/active_support/json/encoding.rb
	activesupport/test/json/encoding_test.rb

0 files changed, 0 insertions, 0 deletions