[x] Refactor handlers in neca.py to eca/http.py
[x] Add session manager to lazy-create new Contexts
[x] Context switching through session manager
[x] Add SSE handler to allow event-based pushes
[x] Add pubsub for SSE handlers to allow emitting from within ECA context
[x] Rework static file handling to not be the exception to normal operations
[x] Add basic Javascript handling of events
[x] Add a way to configure twitter (event generation) input thread
[ ] Add control to event generation thread through HTTP interface
[x] Document all core modules
[ ] Add sample component of a graph/twitter list
[ ] Harden system against programmer error (i.e. sanity check all rules-module data flow)
[x] Add a delayed event scheduler (for 'fire in 2 seconds' things)
[x] locatie tweets http://library.ewi.utwente.nl/ecadata/batatweets.txt
[x] Clean up samples and rename leading sample to template.py + template dir
[x] Button Block
[ ] Session block
[x] Full speed tweet time_factor
[x] Docs in graph.js
[x] emit() in non-server context should doe something useful
[x] Rework rules set to non-global object
