Adding Google Search Appliance match + icon

> Compressed GSA png from original favico
> Adding categories (web server, search engine), simple regex pattern
via HTTP 'server:' header

src/apps.json

@@ -3066,6 +3066,17 @@
 			"script": "apis\\.google\\.com/js/[a-z]*\\.js",
 			"website": "http://plus.google.com"
 		},
+		"Google Search Appliance": {
+			"cats": [
+				"22",
+				"29"
+			],
+			"headers": {
+				"Server": "^Google\\sSearch\\sAppliance$"
+			},
+			"icon": "Google Search Appliance.png",
+			"website": "https://enterprise.google.com/search"
+		},
 		"Google Sites": {
 			"cats": [
 				"1"