[fixes ] update es3 filter to v0.0.7

- it now uses the same esprima as the module transpiler, so it should
  work on all versions of esprima that it does.
- due to ^^ we can now re-introduce one at a time semantics for this
  transpile step (faster incremental builds)

Signed-off-by: Stefan Penner <stefan.penner@gmail.com>
Merge pull request #978 from stefanpenner/es6-safe-recast-fast

[fixes ] update es3 filter to v0.0.7