Added awesome Cellular Exploitation talk by @mspublic
A bunch of comments and text changes

Also trying to fix the map viewer pin info that is:
1. missing LAC
2. Wrong order
Then trying to fix the DB Viewer tables to show more intelligent names.
Some problems...to fix, so probably wont build. yet.
Fix text labels in Map View and DB Viewer

Also disabled debug in SamsungMultiClientRil to not fill logcat buffer,
when not testing.
Create README.md
Added comment about origin
Added CHANGE_NETWORK_STATE

We'll need CHANGE_NETWORK_STATE in order to change RAT and some other things. Got the idea from:
https://github.com/yareally/SignalInfo
"Samsung broke access to switching between LTE and 3G, as they permanently blocked developers from accessing it."
Implemented consistent icon usage based on current security status, this fixes issue #211. Also moved all icon and status-checking out to dedicated static classes
Documented changes added for issue #211
Captures a map-loading function in a try/catch to stop a bug that appears some times from crashing the app, ok fix until we figure out the root cause
Fixed jumping log window - issue #207
added getter function for DBM for future use
Removed some redudant icon update code
Created a BaseActivity class that handles icon update and moved from status-polling to Broadcasts to fetch status changes
BaseActivity: Update app icon upon opening activity
Changed MapViewerOsmDroid.java to use the same BaseActivity as other activites are doing
Merge pull request #233 from scintill/pr-229-rebase

PR #229 rebase to fix the conflict. The issue was just some whitespace changes in CellTracker, where surrounding lines were changed in later commits on the master branch.
merge from previous PR