Replace the ASSERT and ASSERT2 macros by assert
Add exception handlers to all unit tests, tutorials and examples
Replace THROW by OPM_THROW
Replace MESSAGE by OPM_MESSAGE
explicitly include <iostream> in files which use std::cout or std::cerr
C++-11 Features: add test for std::is_integral
Merge pull request #74 from andlaus/adapt_exception_code

Adapt exception code