Merge "Rename BitmapImage as BufferImage" into tizen

diff --cc automated-tests/src/dali/CMakeLists.txt
Simple merge

diff --cc automated-tests/src/dali/dali-test-suite-utils/dali-test-suite-utils.cpp
Simple merge

diff --cc automated-tests/src/dali/dali-test-suite-utils/dali-test-suite-utils.h
Simple merge

diff --cc automated-tests/src/dali/utc-Dali-RenderTask.cpp
Simple merge

diff --cc dali/public-api/dali-core.h
Simple merge

diff --cc dali/public-api/file.list
Simple merge