inherit dose.dose_functions in simulation_functions class
written class and methods documentation except report() and deployment_scheme()
added file header
added prepare_database() function to connect and prepare logging database for use
Merge branch 'master' of https://github.com/clarencecastillo/dose

Conflicts:
	dose/dose.py
 Added 'self' parameter in dose_functions.report and dose_functions.deployment_scheme for consistency
completed documentation for dose_functions class
changed the directory name to store simulation results to use platform-specific OS separator. Format: <CWD>/Simulations/<simulation name>_<date>-<seconds since epoch>/. For example, <CWD>/Simulations/01_basic_functions_one_cell_deployment_2013-10-11-1381480985.77/
function prototypes for database logging
example #01 (with database logging)
example #01 (with database logging)
logging of simulation parameters into database (https://github.com/mauriceling/dose/issues/6)
moved sqlite3.exe to examples directory
function / methods documentation for database_calls.py and dose.dose_functions.database_report()
sqlite3 command line for Mac OSX
world and populations logged into database
Merge pull request #4 from mauriceling/master

1. Database creation. 2. Parameters logging. 3. Set up generational database logging. 4. Modified dose.py to use database logging (if any). 5. Completed database logging function documentation. 6. example #01 with database