corrected and simplified HC-SR04 breadboard, fzz and png
breaking out jshint rules to .jshintrc file

* text editor plugins can use .jshintrc to show linting errors inline rather than having to wait for a build
Removed beautifier changes
Updated npm modules
cleaned up wiring diagram for hc-sr04
Merge branch 'master' of https://github.com/TattedCodeMonkey/johnny-five into hc-sr04

* 'master' of https://github.com/TattedCodeMonkey/johnny-five:
  cleaned up wiring diagram for hc-sr04
  corrected and simplified HC-SR04 breadboard, fzz and png
Tweaks to Ping internals

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Speed up ESC writes

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
LedControl updates. Fixes gh-295

- LedControl initialization
- Adds tests for LedControl
- row, column and led demo

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>