Prefer module global reference rather than window
Check if attachEvent is defined
add sprockets-es6 to plugins
Merge pull request #177 from josh/browser-global

Prefer module provided `global` rather than `window` reference
add changelog for 1.12.18
v1.12.18
add gobble to plugins
move regenerator into main repo so we can iterate on it faster and make a bunch of additional changes
add generator support let scoping - fixes #178
Introduce --remove-comments (-c) option
Exclude comments from generated code
Separate comments and comments setting
Add JSXHint in the plugins list.
Merge pull request #180 from SimonDegraeve/add-jsxhint-plugin

Add JSXHint in the plugins list.
Merge pull request #179 from webpro/remove-comments

Remove comments
fix up comments option
add 1.12.19 changelog
fix up generator normaliseOptions
fix up duplicate variables in regenerator
clean up weird regenerator formatting, only one instance, heaps more to go!