- Add mingw64-libqt4-static.spec for building a static variant
- Converted %packages, %description and %files to use base name from
%name tag
- In macros.mingw64-qt4 use rpm macros without brackets to enable
argc/argv processing (see http://ftp.rpm.org/api/4.4.2.2/macros.html)
which is required after adding mingw64-cross-cmake