* added integer ranges
* added Doxygen documents for MacroValue and its subclass
* fixed string delimiter in macro language (it's double quote and not single)
* fixed problem with line count in presence of macro directives
git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1714 ac1d8469-bf42-47a9-8791-bf33cf982152