Merge pull request #4 from SecUpwN/master

merge upstream changes
Merge branch 'master' of git://github.com/SecUpwN/Android-IMSI-Catcher-Detector
fix for https://github.com/SecUpwN/Android-IMSI-Catcher-Detector/issues/136 and potentially https://github.com/SecUpwN/Android-IMSI-Catcher-Detector/issues/135
Also removed old map viewer code
Merge pull request #140 from tobykurien/master

Fix for #136 and maybe #135.