Initial working version
Add lager.
egol is now a process.

* Using pause instead of stop for egol_cell
* Printing with * and .
Clean up of egol. Export API and remove old functions.
Clean up of egol. Export API and remove old functions.
Clean-up egol_cell. Add API and remove old functions.
Add egol:print_lag/0 to see what is going on
Changed internal message format for replies to get

Wrapped the original {{XY, T}, Content}=C with {cell_content, C}.
Merge remote-tracking branch 'origin/master'