Improve gitweb detection

This commit can be tested on [this](http://git.kali.org/gitweb/?p=packages/cisco-auditing-tool.git;a=summary) website.

src/apps.json

@@ -8702,8 +8702,9 @@
 			"cats": [
 				47
 			],
-			"html": "<!-- git web interface version",
+			"html": "<!-- git web interface version ([\\d.]+)?\\;version:\\1",
 			"icon": "gitweb.png",
+			"script": "static/gitweb.js$",
 			"implies": [
 				"Perl",
 				"git"