add support for generator comprehensions - fixes #149
upgrade regenerator-6to5
add spread caveat and add generator comprehension and react/jsx to features
add generator option to FunctionExpression builder keys
rename util.parseNoProperties to util.parseTemplate
add apply-constructor declaration and add support for not returning generated code in opts.code
add default parameters existence change to well... the defaultParameters transformer
add generator comprehension transformer
move down 6to5-node util declaration
use Array.from instead of Array.prototype.slice in spread transformer and support NewExpression spreads - fixes #148
add 1.12.3 changelog