set KATIE_<COMPONENT>_DEFINITIONS from KatieConfig CMake file and improve Qt4 compati...

set KATIE_<COMPONENT>_DEFINITIONS from KatieConfig CMake file and improve Qt4 compatibility

by setting up interface definitions and include directories for the
components GUI tests will work without any changes (-DQT_GUI_LIB will be
defined for them because they link to KtGui library).

this will also fix some corner cases, for an example when projects do not
use `add_definition(${QT_DEFINITIONS})` and/or
`include_directories(${QT_INCLUDES})` in their build system making porting
of other projects much easier

Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>