Merge pull request #52 from onetruebob/master

Smoothed out transitions in the chart. Required reworking how the graph ...
(feature) added reset button
(refactor) removed restart button (temp)
(refactor) fixed improper playing, reverts to play on finish
(refactor) repeats on click when played after completion
(refactor) removed console.logs, play/pause seems to work correctly
(bugfix) fixed flash of disconnected node on play
(docs) cleaned up code/comments
(docs) removed console.logs
Fixed issue with narrowing down nodes and links when they are changed in the new data set.
Merge pull request #53 from wlabranche/bugfix/play-button

Bugfix/play button
Merge pull request #54 from onetruebob/debug/ChartIssues

Fixed issue with narrowing down nodes and links when they are changed in...