[sync]
e4x CDATA support
https://github.com/einars/js-beautify/commit/520803857899db242e593166dca88a5d3073c4a1
e4x single quotes in e4x xml literals
https://github.com/einars/js-beautify/commit/47b8d072b0256b7c5e95efbbbf326bbd713da275
e4x quote in xml literal: more tests
https://github.com/einars/js-beautify/commit/3fc2d503ddbdd61bc58499879ef9b1b2cb83aeed
Simplify conditional comment formatting
https://github.com/einars/js-beautify/commit/75cccc43710de77a1b4de2ba7ac6e65288799bc5
 E4X python ... (+ improved tests in JavaScript)
https://github.com/einars/js-beautify/commit/09c8134dda3db6f92e936fc07af0aa1de808e22f