Merge pull request #72 from bvssvni/master

Added volume to example
Fixed build status button
Made decrement-timer-else-break a one liner in example
Merge pull request #75 from mitchmindtree/master

Made decrement-timer-else-break a one liner in example
Made Node trait generic over both input and output sample types
Added missing docs for type aliases

Closes https://github.com/RustAudio/dsp-chain/issues/77