Changes to allow wrap_libav.jl to work with recent Clang changes.
Merge pull request #1 from kmsquire/wrap_libav_updates

Changes to allow wrap_libav.jl to work with recent Clang changes.
Moved generated files to a libav-0.8 subdirectory
Updated to latest wrapped version (+ hand modifications)
Added exports
Added tutorial01.jl
Updated/added LICENSE.md, README.md, REQUIRE and TODO.md
Change julia version in REQUIRE to v0.3-
Added OpenCV-like AVCapture interface

* Based off of tutorial01.jl
* Currently video-only