Custom libraries class loader.

- Moved libraries (reactors and transports) into reactor-lib folder with
  common parent pom.
- Reactors and transports are now built with dependencies.
- New reactors and transports are picked up automatically on
  reactor-bootstrap start.

Fixes #13
Removed library modules from parent pom
Merge pull request #18 from tkurylek/TK-13-startup-script-mod

Custom libraries class loader.