Release version 2.3.0 (#3113)

## Interaction Features

* Constrain pan/zoom to min/max domain values
Adds `minDomainValue`/`maxDomainValue` properties to the PanZoomInteraction class that constrain the pan/zoom interaction to those domain values.

* Making selection easier
Adds `entitiesAt` method to _ALL_ plot types, deferring the best method for selecting entites based on a mouse click to each plot type. Also adds the index of the dataset to the `PlotEntity` object to determine which series was selected.

* Add `onPanEnd` and `onZoomEnd` to the PanZoom interaction

## Infrastructure Updates

* Upgrade to Typescript 2
* Use `@types` where supported
* Move bower dependencies to npm
* Upgrade TSLint to 3.15

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "plottable",
   "description": "A modular charting library built on D3",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "main": [
     "plottable.js",
     "plottable.css"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "plottable",
   "description": "A modular charting library built on D3",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "license": "MIT",
   "repository": {
     "type": "git",

plottable.js

@@ -1,5 +1,5 @@
 /*!
-Plottable 2.2.0 (https://github.com/palantir/plottable)
+Plottable 2.3.0 (https://github.com/palantir/plottable)
 Copyright 2014-2015 Palantir Technologies
 Licensed under MIT (https://github.com/palantir/plottable/blob/master/LICENSE)
 */
@@ -887,7 +887,7 @@ var Plottable;
 })(Plottable || (Plottable = {}));
 var Plottable;
 (function (Plottable) {
-    Plottable.version = "2.2.0";
+    Plottable.version = "2.3.0";
 })(Plottable || (Plottable = {}));
 var Plottable;
 (function (Plottable) {