[LAA] LV2 4.0

LV2 4.0 is out. More information about LV2 can be found at: http://lv2plug.in This release is a significant one, fixing many problems and introducing a new standard (though optional) method of depending on LV2 extensions. In particular, it is now possible to install system-wide extensions and build against them using a standard include style (without requiring a central authority on extension package names). The lv2core package, as of this version, includes a utility called lv2config that makes this possible. See http://lv2plug.in/docs/index.php?title=Using_Extensions_in_Code for details. Changes (non-exhaustive): * Make doap:license suggested, but not required (for wrappers) * Define lv2:binary (MUST be in manifest.ttl) * Define lv2:majorVersion and lv2:minorVersion (MUST be in manifest.ttl) * Define lv2:documentation and use it to document lv2core * Add lv2:FunctionPlugin and lv2:ConstantPlugin classes * Move lv2:AmplifierPlugin under lv2:DynamicsPlugin * Loosen domain of lv2:optionalFeature and lv2:requiredFeature (to allow re-use in extensions) * Add generic lv2:Resource and lv2:PluginBase classes * Fix definition of lv2:minimum etc. (used for values, not scale points) * More precisely define properties with OWL * Move project metadata to manifest * Add lv2:enumeration port property. * Define run() pre-roll special case (sample_count == 0). Release tarball is available at: http://lv2plug.in/spec/lv2core-4.0.tar.bz2 Documentation for LV2 core is available at: http://lv2plug.in/ns/lv2core <http://lv2plug.in/ns/lv2core/> Share and enjoy, -dr