Merge pull request #8 from mauriceling/master

1. helper functions to reconstruct simulation from database log. 2. infrastructure for logging parental identities in children status dictionary
Merge branch 'master' of https://github.com/mauriceling/dose
Reconstructed simulate() and revive_simulation() in dose.py
Updated write_parameters() in simulation_calls.py
Reconstructed 00_test_simulation.py in preparation of 08_revive_simulation_03
Initial commit of 08_revive_simulation_03.py
Merge pull request #60 from clarencecastillo/master

Reconstructed simulate() and revive_simulation() in dose.py