1- Refactored the code
   - change main script name from observations_generator.py to bugs_processor.py
   - integrated the support scripts into the bugs_processor.py script
2- New features
   - Removed need to edit file paths in the source
   - User can now access the features of the script by passing command line arguments and parameters to the script
3 - Other changes
   - remove dependency on mysqldb library
   - code now reads the database connection parameters from an environmental variable