Properly set the dirty rect to invalidate when points are added.
Don't draw points outside of the clip rect.
Merge branch 'dev' of https://github.com/garvankeeley/MozStumbler into point-draw-performance
basic hashing is working, need to hookup per-zoom
Recalc grid on zoom changed
Used ordered hash map, so that we can draw newest to oldest
display visible GPS satellites
improve GPS spacing
improve GPS spacing
improve GPS spacing (3)
reduce width of network count fields
use measureText instead of getTextBounds
Use a boolean flag for 'is mls query running' rather than checking if
the asynctask is non-null
updated de translation, fixed en strings

Updated German translation and fixed some small bits in the English
strings.
revert unrelated change
display visible GPS satellites
improve GPS spacing
improve GPS spacing
improve GPS spacing (3)
reduce width of network count fields
use measureText instead of getTextBounds