Update gitignore
Rename Node to Nodes
Update gitignore to include .pyc and DS_Store
Add Create, Process, Decision and Kill as parts of Node
Delete Create, Process, Decision and Kill files
Create SimObjs file that consolidates Entity, Resource, Schedule and Queue

Need to find a better name for this later.
Update imports based on SimObjs
Move Queue definition from parameters to the function
Update imports to reflect Nodes and SimObjs
Remove Pass from example