android-940
Debian Dockerfile
[docs] Fix link to CLA in CLA.md
[iOS] replace carthage with cocoapods, update facebook login sdk to v4.42.0
[base] Removed the MY_ prefix from the scope guard.
Review fixes.
[iOS] Add Objective-C style guide. Update clang-format rules
[docs] Documentation files, empty for now
Create SUBWAY_GENERATION.md
[android][win] Android apk can be built with ant from GitBash console
Renamed/moved old stuff.
add screenshots to readme
