TEZ-1645. Add support for specifying additional local resources via config. (hitesh)

(cherry picked from commit 6c199033c15767f2251844f91c0942229ed36277)

Conflicts:
	CHANGES.txt
TEZ-1646. Add support for augmenting classpath via configs. (hitesh)

(cherry picked from commit 6d856f9521960c782d4b8c43c14fec16a1d6552c)