Allow for Disabling Auto Searches

[slam-er]

On slow devices such as the n810 the city/town search field can be quite time consuming because for every letter I type I have to wait about a second to type in the next letter of the city/street I am searching for.

Although it can be convenient to only have to type three or four letters and hopefully have what I'm searching for will appear in the list of items it more often just slows down the whole process. It would be nice to have an option that would enable/disable the auto search function so I can quickly type in the whole city name and then let Navit search just one time for a match.

[kazer]

Auto search feature has been reworked, and is even usable on the Freerunner (meaning it should be usable on every device :o) )