Carma board support fixed.
Use gtest assertions in cascade test

This simplifies test debugging a lot
Merge pull request #441 from jet47:filter-speckles-8u
Try to fix Mac compilation issue.
Merge pull request #443 from taka-no-me:fix_cascade_test
The next attempt to fix a build error on Mac.
Fix some warnings from -O0 build
Merge pull request #444 from taka-no-me:fix_o0_warnings
Code review issues fixed. Compatibility issues fixed.
Added --failed-only option and multiple input files support
BP doc change according to Adrian's request (OpenCV book co-author)
some bugs fix in using AmdFft library
add +-*/ operators to oclMat
15-puzzle app reverted to usage of old CvCameraViewListener implementation;
super.onPause() call moved to begining of onPause method according Google recomandations.
Code review notes fixed;
HardFP and SoftFP toolchains joined to one;
RPATH skiping added.
Tutorial 1 renamed
Tutorial-2 removed as dublicate of tutorial-1 and image manipulations sample.
Tutorial-3 removed as dublicate part of tutorial-4.
Tutorial4 sample renamed to Tutorial-2-MixedProcessing
Tutorial-5 -> Tutorial-3