don't leave follow mode on mapmove for a variable zoom
the user may want to use different zooms in follow mode (for example
if he rides a bike or drives a car)...unfortunately, leaflet triggers
maps movestart event _before_ the zoomstart event. this makes it
impossible to differentiate between a mapmove triggered by a zoom-event
or a move-event. the user can leave the follow mode by pressing the
getLocation button...this should be enough.
use new location pref while injecting scripts
don't add stock plugins to the plugin section
user-location: Avoid errors if plugin has not been initialized yet
amend IITCm contributors, small changes to strings
improved tile caching by merging equal domains in one folder
use File.getParentFile() to get the tiles file path