FORMUS3IC_LAS3 / embb

Put printing the automatic initialization message to the main CMakeLists.txt file, as this is more logical

DUSE_AUTOMATIC_INITIALIZATION message is printed for tasks_cpp and mtapit_cpp. Remove for tasks_cpp.

Base type constructor of Atomic<BaseType*> template specialization now has the "explicit" specifier.

EMBB-460

EMBB-466.

Fixed the buggy implementation of the id pool (did give out fewer elements as capacity, with repeated operations capacity was further reduced).

The comparison of absolute times was done in a wrong way such that
unsigned int overflows occured in the windows implementation when
the time to wait for had been passed already. A very big time to
wait for resulted, i.e., a deadlock.

EMBB-466

Fixed doxygen warning, "." was ignored. Verified, that image is still contained correctly in build documentation.