Fix lv2specgen usage from command line. Fix round-trip UTF-8 support in lv2specgen. Support specifications with URI equivalent to prefix and/or slash namespaces.
Fix lv2specgen usage from command line.
Fix round-trip UTF-8 support in lv2specgen.
Support specifications with URI equivalent to prefix and/or slash namespaces.

ssj71/lv2,ssj71/lv2,ssj71/lv2