Update to 1.7.3 (#3603)

* build v173

CHANGELOG.md

@@ -1,3 +1,15 @@
+**Version 1.7.3**
+
+- Improvement: mousewheel event is handled with target and fired also from objects.  [#3612](https://github.com/kangax/fabric.js/pull/3612)
+- Improvement: Pattern loads for canvas background and overlay, corrected svg pattern export [#3601](https://github.com/kangax/fabric.js/pull/3601)
+- Fix: Wait for pattern loading before calling callback [#3598](https://github.com/kangax/fabric.js/pull/3598)
+- Fix: add 2 extra pixels to cache canvases to avoid aliasing cut [#3596](https://github.com/kangax/fabric.js/pull/3596)
+- Fix: Rerender when deselect an itext editing object [#3594](https://github.com/kangax/fabric.js/pull/3594)
+- Fix: save new state of dimensionProperties at every cache clear [#3595](https://github.com/kangax/fabric.js/pull/3595)
+- Improvement: Better error managment in loadFromJSON [#3586](https://github.com/kangax/fabric.js/pull/3586)
+- Improvement: do not reload backgroundImage as an image if is different type [#3550](https://github.com/kangax/fabric.js/pull/3550)
+- Improvement: if a children element is set dirty, set the parent dirty as well. [#3564](https://github.com/kangax/fabric.js/pull/3564)
+
 **Version 1.7.2**
 
 - Fix: Textbox do not use stylemap for line wrapping [#3546](https://github.com/kangax/fabric.js/pull/3546)

HEADER.js

@@ -1,6 +1,6 @@
  /*! Fabric.js Copyright 2008-2015, Printio (Juriy Zaytsev, Maxim Chernyak) */
 
-var fabric = fabric || { version: "1.7.2" };
+var fabric = fabric || { version: "1.7.3" };
 if (typeof exports !== 'undefined') {
   exports.fabric = fabric;
 }

ISSUE_TEMPLATE.md

@@ -25,7 +25,7 @@ Remove the template from below and provide thoughtful commentary *and code sampl
 
 <!-- BUG TEMPLATE -->
 ## Version
-1.7.2
+1.7.3
 
 ## Test Case
 http://jsfiddle.net/fabricjs/Da7SP/