Dev Feature Push
- Add target.goals property
- Refactor how targets are selected to be built
- Allow target.require arrays
- Allow bit.script arrays
- Allow script functions
- Refactor event names
- Move bit.es to bits
- Precompile bit.es to bit.mod
- Support local bits/bit.es and bits/bit.mod
- Separate configure.es and generate.es
- Update doc