Releasing 0.4.3 in lieu of PR #520 (escodegen version update)

[gscoppino]

I'm depending on the package rollup-plugin-istanbul (which depends on your package) to instrument code that has ES2015 named exports and there is a bug in the version of escodegen being pulled by your current package version. I see the fix already came in on PR #520, but you could bump to a new patch version so the fix will be available to dependents?

Thanks for the great work on this package @gotwarlost

[mastercactapus]

I just got to the bottom of this while migrating a repo to webpack 2 with named exports. istanbul-instrumenter-loader also depends on this package and suffers from the escodegen bug.