Conflicts:
	modules/highgui/src/grfmt_tiff.cpp

floodfill return value removed

tiff test fixed

(cherry picked from commit e11333dd)

1. someMatrix.data -> someMatrix.prt()
2. someMatrix.data + someMatrix.step * lineIndex -> someMatrix.ptr( lineIndex )
3. (SomeType*) someMatrix.data -> someMatrix.ptr<SomeType>()
4. someMatrix.data -> !someMatrix.empty() ( or !someMatrix.data -> someMatrix.empty() ) in logical expressions

Made all STL usages explicit to be able automatically find all usages of
particular class or function.

a big patch; use special proxy types (Input/OutputArray, Input/OutputArrayOfArrays) for passing in vectors, matrices etc.