Changed class names to update rather than get, and fixed a small bug in the writer. Implemented getShiftsByWeek.

Fixed issues where after a connection is established on a server with no clients, employee data couldn't be received. Error messages print to console.

Revert "Fixed issues where after a connection is established on a server with no clients, employee data couldn't be received. Error messages print to console."

This reverts commit 032e63a2.

Fixed issues where after a connection is established on a server with no clients, employee data couldn't be received. Error messages print to console.

Fixed bugs that made getEmployeeByID not work. For some reason if this while loop and print statement arent present then the client will never get the initial send of the data. Removed commented code and cleaned up warnings.

Fixed bugs with that caused in consistencies with message sending between client and server. All employee data should be updated to all clients when employee data is modified in the database. The client should have an updated copy of employee information.