Switch done
Merge pull request #35 from Gruppe01/model-meeting

Model meeting
Added place field.
Merge pull request #36 from Gruppe01/Gui-CreateMeeting

Added place field.
Made some changes to datedisplay and removed meetings list.
Merge pull request #37 from Gruppe01/gui-showmeeting

Made some changes to datedisplay and removed meetings list.
Merge pull request #38 from Gruppe01/model-meeting

Server and client
debugged the switch
Created own packages for MySQL and client-server classes.
Fixed getNextID method
Merge pull request #39 from Gruppe01/persistence-server

Reorganized persistence package
Fixed persistence layer.
Added UpdateHandler class and connected it to the client class.
Generalized MySQLQuery class.
created logic between panels
Merge pull request #40 from Gruppe01/persistence-server

Fixed persistence layer.
AddExternal and ShowMembers added
Merge pull request #41 from Gruppe01/Frame

Frame
Small bug Fix
small bugfix
Changed what client and server sends.
From ArrayList to HashMap
Merge pull request #42 from Gruppe01/persistence-server

Changed what client and server sends.
Create user connected to model