fix for electron-compile support

[ghost]

Sorry guys! Turns out electron-compile doesn't actually use electron underneath, it just depends on electron-prebuilt-compile, so we can't resolve('electron-compile'). So #111 won't work if the user has electron-compile as a dependency.

Since electron-compile depends on its prebuilt counterpart, we can just resolve that and it will work in both cases (whether they have electron-compile or just electron-prebuilt-compile).

[ghost]

Not entirely sure why that build failed in Travis, doesn't look like it has anything to do with the module though...

[inukshuk]

Thanks for the follow-up!