Code cleaning
Fixed #84
Translucent navigation and status bar
Fixed hash_set/map deprecation warnings

Replaced inclusions of deprecated hash_set/map with C++0x stuff by
@TheStalwart
Merge git://github.com/alex-alex/iOS-Ingress

Conflicts:
	s2-geometry/s2.cc
	s2-geometry/s2.h
	s2-geometry/s2cellid.h