placeholders rearanged
added Threading to build
back to gcc-4.9 with proper flags
JoiningThread implemented and tested
doxygen added
Fifo is mostly implemented and tested
Exception base class is now implemented and tested
added main library to linking phase
removed unneeded placeholder files
address sanitizer is now not enabled by default as it interferes with
valgrind.
c-tor is now protected (class is not to be used directly).
defining, deriving and throwing exceptions now work as expected.
fixed issue with added ending semicolons after macro declarations - now
user need to add them on her own.
Fifo has been implemented and tested.