Bump version to 0.15.2

HISTORY.md

@@ -1,3 +1,7 @@
+##0.15.2
+**Changes**
++ [Fix support for proxy credentials in proxy URL and fix error when there are more than 10 outstanding requests](https://github.com/ripple/ripple-lib/commit/0990ad4a6f1d59ca9d2cb859b4e2d71693f3fc4b)
+
 ##0.15.1
 **Changes**
 + [Fix babel-polyfill require](https://github.com/ripple/ripple-lib/commit/062148674c3b1293ab82c28e25615ddd530339fa)

npm-shrinkwrap.json

@@ -1,6 +1,6 @@
 {
   "name": "ripple-lib",
-  "version": "0.15.1",
+  "version": "0.15.2",
   "dependencies": {
     "ajv": {
       "version": "1.4.8",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ripple-lib",
-  "version": "0.15.1",
+  "version": "0.15.2",
   "license": "ISC",
   "description": "A JavaScript API for interacting with Ripple in Node.js and the browser",
   "files": [