Adding doxmlparser+qtools source code.
Added doxmlparser's c++ flags.

Project now requires CMake 2.8.12+
Using mode CMake variables
Allows to build outside the repository folder.
Forgot to uncomment a C++ flag for doxmlparser.
Now compile qtools and an initial dummy version of introspector.

This initial version is basically Doxmlparser's example.
Merge branch 'doxmlparser' into dev