MozStumbler v0.20.4
Merge pull request #609 from garvankeeley/0.20.4

Release 0.20.4
Remove old preferences keys on upgrade
Merge pull request #611 from illarionov/removeOldPrefsKeys

Remove old preferences keys on upgrade
Motorola Defy {Plus, Mini} SSIDs
Determine whether the cell location is updated when the screen is off
Merge pull request #612 from JensErat/motorola-ssids

Motorola Defy {Plus, Mini} SSIDs
Merge pull request #613 from illarionov/screenIsOffWatcher

Determine whether the cell location is updated when the screen is off
Update SSIDBlockList.java

I encountered the SSIDs "MeinFernbus1" and "MeinFernbus2" recently. There is no ambiguity without the "-" as Fernbus means "long distance bus" in german.
Merge pull request #615 from VolMi/patch-1

Update SSIDBlockList.java (@VolMi)
Merge pull request #616 from garvankeeley/master

issue #610: better credit to OSM on about screen