Added new transcoding profiles for H.265

In my testing it's about 6x slower than H.264 but also half the bitrate with the same visual quality, so it's a great choice for people with fast CPUs and wireless networks
Made MEncoder and VLC output H.264 video when the H.265 transcoding profile is being used, instead of MPEG-2 like before
Added notes about transcoding profiles
Added note about VLC