Use CMake in Travis build as well.
Propagate $PATH to SCons files to make gettext binaries available under macOS.
Set C++ standard to enable building with clang.
Use "Variables" instead of "Options" to fix SCons warning.
Explicitly link against expat.
Add desktop file. Install SVG and PNG icons, generate PNG icon if necessary.
Allow specifying additional ccflags, disable debug mode by default.
Cleaner and simpler Gettext support for SCons.
Fix profiling switch in SConstruct. Speed up simulation by avoiding double calculation.
Cleanup of SCons files, eliminate further GCC warnings.
Added possibility to install everything in a 'destdir'.
Better and cleaner installation.
* mo files are built by SCons Builder Objects
* improved installation
Added README and improved i18n script.
Added i18n using gettext.