#307 changed the message to Show Contacts for show contacts button

VadereGui/resources/messages.properties

@@ -311,6 +311,7 @@ SettingsDialog.chbLogo.text=Show the Vadere logo
 ProjectView.btnShowWalkingDirection.tooltip=Show the walking direction of all pedestrians
 ProjectView.btnShowGroupInformation.tooltip=Draw pedestrians within one group with same shape and color
 ProjectView.btnShowPedestrian.tooltip=Show Pedestrians
+ProjectView.btnShowContacts.tooltip=Show Contacts
 ProjectView.btnShowPotentialfield.tooltip=Show Potential Field (only possible after adding potential field file)
 ProjectView.btnShowTrajectories.tooltip=Show Trajectories
 ProjectView.btnShowGrid.tooltip=Show Grid