Renamed dose_entities into simulation_functions to prevent confusion in variable naming
Renamed 'p' to sim_param; 'population' to pop_name and 'Entities' to World on specific functions within dose
Hid dose_world initialization inside dose.py's simulation_functions class
Renamed 'entities' in SIM_01.py as 'simulation_functions' and 'simulation_functions' inside dose.py as 'dose_functions'
Renamed 'time' in dose.py simulation function as 'time_start'
Added simulation results files into the ingore list
Refactored eco_cell_locator helper by merging eco_cell_locator and eco_cell_executor into one function
Implemented helper functions to filter agents in a population with a specific status key
Added method to enable user to set custom deployment schemes
Merge pull request #22 from clarencecastillo/master

Implemented several changes to close issues regarding enhancements