drafted agent tutorial
added agent tutorial, fixed formatting
added domain, policy, rep tutorials and examples
code comments from Apr
removed domains
merged Representation.py
merged agents
merged representations
Merge branch 'master' of https://bitbucket.org/rlpy/rlpy into module_creation_tutorials

Conflicts:
	Agents/Agent.py
	Agents/TDControlAgent.py
	Representations/Tabular.py
	Tools/Logger.py
	rlpy/Policies/eGreedy.py
	rlpy/Representations/IncrementalTabular.py
	rlpy/Representations/Representation.py
removed extraneous files
api broken by restructuring - fixing wip
api broken by restructuring - fixing wip
fixed tutorial examples for restruct
fixed documentation for restruct
reordered params, alpha->learn_rate, gamma->discount_factor, updateAlpha()->updateLearnRate(), lam->lambda_
removed unused parameter DEBUG, changed theta to feat_weights
added docstrings, theta --> feat_weights
added docstrings, added precondition checks or made explicit, changed confusing variable names, removed unused fnctn matrix_mult
Merge branch 'master' of https://bitbucket.org/rlpy/rlpy into module_creation_tutorials

Conflicts:
	rlpy/Agents/Agent.py
	rlpy/Agents/Greedy_GQ.py
	rlpy/Agents/TDControlAgent.py
reordered params, changed greek letter names, fixed kIFDD import bug