Merge pull request #3 from EDixon/eliot

Eliot
first stuff for policy adding
Merge branch 'eliot' of https://github.com/EDixon/strands_executive into eliot

Conflicts:
	mdp_plan_exec/src/mdp_plan_exec/mdp.py
finished policy addition
mdp.py code cleaning
added structure for execution implementation and an extra test client
Merge pull request #1 from BFALacerda/eliot

adding policy generation and structure for policy execution