Prepared JsonBox to generate documentation with Doxygen.
Added some missing includes in JsonBox.h.
Changed the way the output works to make use of streambuf filters.
Changed the default value of escaleAll to false (affects the output functions in the Value class).
Object and Array are now typedefs of STL containers instead of making them inherit from the containers (which was a pretty bad idea).
Restructured to use CMake.