Fixes in latest NG pkg

`IAttributes` definition made it impossible to use scoped attributes - see my comments
`scope.$eval` was missing locals argument
`IDirective.controller` made it impossible to use minify-safe array notation, had to switch back to `any`
`IDirective.require` can be both `string` or `string[]` so changed back to `any`.

This will all be so much better once we get union support in TS...
Merge pull request #1198 from georgiosd/patch-3

Fixes in latest NG pkg