Added parameters to render_image method

So it can be reused in other modules
Added demo to run socrates example with visualization
Added mongodb instructions
Reverted parameter change
Implemented visualization of socrates demo
Added example timeseries for inspection of visualization before merge
Corrected check
Truncated atom uuids for visualization
Deleted example_timeseries
Merge pull request #30 from sebastianruder/demo

Demo of socrates_agent.py
Added command to stop agent loop to manually step agents
Added way to save and compare atomspaces in Python
Changed check for additional atoms