Correct Handlers keys to allow logging to file.
Reverted to KeyError when Name isn't in the Database index.
Added Exception to handle KeyError for database writes not in database index.
Added Exception to handle KeyError for database writes not in database index.
Revert KeyError for index cecking.

Merge branch 'master' of https://github.com/neil-d95/FIX-Gateway

Conflicts:
	src/database.py
Merge pull request #6 from neil-d95/master

Update for Error handling and Logging.