Added documentation for MIKMIDIEntity.
Added documentation for MIKMIDIEndpoint and itssubclasses.
Merge pull request #13 from grype/master

Some improvements to handling sysex messages and to the testbed app
Added documentation to MIKMIDICommand.h
Merge branch 'master' of github.com:mixedinkey-opensource/MIKMIDI
Minor code style, naming, and formatting changes. No functional changes.
Issue #11: MIKMIDIMapping and MIKMIDIMappingItem now implement NSCopying.
Fixed bug where -isBundledMapping could be incorrect when an edited bundled mapping was added to the user mappings.