Prevents access data after the end of input buffer near 4K page boundaries

Conflicts:
	modules/ts/misc/run.py

JNI check became optional;
Pathes to SDK, NDK and Java API level can be defined by command line.

Android 4.3 support added;
ANY camera index support fixed;
applyProperties now uses camera->reconnect() instead close/connect for Android 4.x.
(cherry picked from commit fff91eef)

Android 4.3 support added;
ANY camera index support fixed;
applyProperties now uses camera->reconnect() instead close/connect for Android 4.x.

Windows RT sample cleanup.
Video I/O code cleanup.

Unused scenarious removed.
Grey scale convertion replaced with cv::Canny call.