Tunisia and Egypt are/were both dictatorship run Arab countries.What has happened in each has no bearing on Turkey.This is not an Arab country,it has enjoyed many years of stability now and it has a moderate Islam leaning democratically elected government-a government that was returned the second time with a highly increased majority.Civil unrest can break out even in western democratic countries of course but there is nothing at all to suggest that civil unrest of the Tunisia/Eygpt type could break out here.
No need to run panicking to the travel agents just yet