Pass `moduleName` to `importStatementFormatter`
Pass `moduleName` to `importStatementFormatter`

This can help make manipulating the import statement a little smoother.
As requested in #385.

While I was changing things, I noticed that `pathToCurrentFile` was
passed in the call to `config.get`. This variable is automatically
injected, so there's no need to specify it here.

trotzig/import-js,Galooshi/import-js,trotzig/import-js,trotzig/import-js