Commits

• 15a7d20: Use the latest available C++ standard (Igor B. Poretsky)
• cce9a59: Prevent make warnings about implicit targets (Igor B. Poretsky)
• 0cb2a21: Added URLs (Igor B. Poretsky)
• 850b488: Release automation (Igor B. Poretsky)
• 4aa794b: Upstream release 4.6.3 (Igor B. Poretsky)