Added terrain elevation to hook display.
Made hook follow mouse cursor instead of map centre on MicroDAGR
Addition of hook controls and functions to tablet.
Changed user marker deletion to delete on DEL key and only delete the marker currently under the cursor.
Optimized user marker search function for speed 40 markers now just takes about 0.21ms.
Added highlighting of marker currently under cursor.
Moved findUserMarker and deleteUserMarker functions to Functions Library.
Moved onIfKeyDown function to Functions Library.
Added map mode switch (F6) hotkey to all "large" interfaces that have more than one map mode.