implement \u escape sequences in strings
raise an error when the code point is greater than 0x10FFFF
Merge pull request #2759 from mandel59/unicode-escape

implement Unicode code point escapes
Split large strings to msvc does not spit the dummy
[cs] Fixed issue with OpAssignOp and OpAssign on Null<ValueType> types. Closes #2754
[installer] Testing rmdir solution (issue #2758)
[tests] do not explode all other targets
[cs] Do not generate reflection information for explicitly implemented interfaces
CHANGES.txt update
update release-checklist.txt
fix haxe.io.Bytes#ofString and toString

Issue #2764
Merge pull request #2765 from mandel59/bytes-utf8-utf16-bug

fix haxe.io.Bytes#ofString and toString