Release 5.0.0-alpha3 (#476)

* 95 additional icons; including file types, directional, and some existing and new brand icons
* Wrong content type in generated CSS #458
* Removal of query string from static resources #458
* SVG font ID's are incorrect in webfont implementation #474

svgs/light/share-all.svg

@@ -0,0 +1,12 @@
+<!-- Generator: Adobe Illustrator 21.1.0, SVG Export Plug-In  -->
+<svg version="1.1"
+	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/"
+	 x="0px" y="0px" width="576px" height="512px" viewBox="0 0 576 512" style="enable-background:new 0 0 576 512;"
+	 xml:space="preserve">
+<path d="M470.632,201.371L310.63,41.4c-20.04-20.04-54.63-5.96-54.63,22.63v72.69c-115.5,3.84-256,28.17-256,181.07
+	c0,64.98,33.54,118.26,85.11,155.97c24.19,17.7,58.04-4.92,49.69-34.51c-27.7-98.19-0.38-122.06,121.2-126.42v71.15
+	c0,28.61,34.61,42.64,54.63,22.63l160.002-159.98C483.123,234.131,483.123,213.871,470.632,201.371z M288,384.001v-103.9
+	c-145.671,1.326-224.979,22.633-184,167.9c-31.51-23.05-72-65.11-72-130.21c0-131.425,125.835-148.345,256-149.69v-104.1l160,160
+	L288,384.001z M566.628,246.628l-160,159.978c-13.454,13.454-33.492,11.509-45.191,0.106L544,224.001L361.438,41.294
+	c11.695-11.401,31.723-13.362,45.189,0.105l160,159.974C579.124,213.87,579.124,234.131,566.628,246.628z"/>
+</svg>