Merge pull request #1 from kirill-kornyakov/master

Adding more exclamation marks
Add Travis button
Update README
Add project structure
Add build with Travis
Fix gtest build
Fix gtest build (add pthread)
Try to workaround gtest build issue
Clean gtest CMake script
Add OpenCV to library
Clean cmake scripts
Merge pull request #2 from kirill-kornyakov/add-travis-button

Add travis button
Merge pull request #3 from kirill-kornyakov/create-project

Add project structure
Attempt to commit.
Attemp to commit interface modification.
	modified:   photoeffects/src/photoeffects.cpp
	modified:   photoeffects/test/photoeffects_test.cpp
remove 'photoeffects/photoeffects_test'
remove 'photoeffects/photoeffects_sample'
remove 'photoeffects/CMakeCache.txt'
remove 'photoeffects/Makefile'
remove 'photoeffects/cmake_install.cmake'