v1.7.1

Adds support for lowest-possible frame-size (passing 0 as frame-size) in RtAudio. Special thanks to @marcelblum.

• chore: regenerate docs a338ea7
• chore: update node.js packages adb3b98
• docs: add return value 2df96b7
• Merge pull request #22 from marcelblum/fix-unknown-frameSize 6964f7f
• update docs & comments 76a6309
• openStream returns actual frameSize 910d7df
• chore: regenerate docs 856fdba

v1.7.0...v1.7.1