OpenCV Version 2.4.6;
OpenCV Manager Version 2.8;
Doc fixes.

Simple set of the camera index to allow the user to change it after the object has been initialized.

A modification of the JavaCameraView is needed to avoid a crash when the
app is exited. It is a good practice to remove the callback after the
stopPreview method.

Also, removed the one from modules/python/src2/cv.py and cleared its
executable bit, since it's not a script.

Front/Back camera constants' values changed;
Additional camera facing check added for JavaCameraView.

OpenCV Manager verison incremeneted;
Docs and tests updated accordingly;
COnstant for Manager initialization added.

Native activity build warning fixed;
Logcat messages for JavaCameraView updated (Bug #2876);
Some fixes for feature #2893 done.

OpenCV version incremented;
New CvCameraViewListener interface description added.

Manager verison incremented;
Additional constatnt for library intialization added;
Documents updated.

OpenCV build information output to logcat added to OpenCV initialization code;
Documenation for cv::getBuildInformation() added.

In previous version getWidth() and getHeight() values were used instead method parameters.

super.onPause() call moved to begining of onPause method according Google recomandations.

New interface allows to get one RGBA or Gray frame from camera or both in the same time;
New interface fixes data rase in samples also.

Introduced new Java API
void org.opencv.core.Core.setErrorVerbosity(boolean verbose)
used to suppress output to stderr from OpenCV's asserts

Common part of all source files is extracted to special header

This fixes random failures in Java wrappers.

* always use "argN" names for unnamed arguments
* honor space symbol between typename and "*", "&" symbols
* fix indent errors

Problems with Android 2.3.3 (API level 10) fixed;
Android 2.2 does not work due to unsupported camera frame format (known android-2.2 emulator issue).

Black list of entities, that are not implemented in Java API added to javadoc generator

OpenCV namespace added;
Default values for camera_id added;
Aditional constructor with cameraId added.
Resolution added to FPS message.

FPS meter added;
Camera switching posibility added;
Attributes loading for layout filed implemented.