Merge branch 'master' of https://github.com/thestk/rtmidi

There are no API changes in this release, other than the addition of …

…an optional argument to the setErrorCallback() function and the addition of a new C API. The primary changes involved updates to the build system and some small bug fixes. Note that the Windows kernel streaming code is in a separate branch, as it is incomplete.

Corrected documentation regarding API default order in RtMidi.h

Release 2.0.1 tarball

Release 2.0.0 tarball

Release 1.0.15 tarball

Release 1.0.14 tarball

Release 1.0.13 tarball

Release 1.0.12 tarball

Release 1.0.11 tarball