Add support for twitter

Grabs "feed" from the html page, clips tweet and article together.

feedify.ini

@@ -0,0 +1,11 @@
+[twitter]
+path=
+	http://twitter.com/*
+	https://twitter.com/*
+
+title=	(//strong[class=search-query]|//span[class=screen-name])/text()
+items=	//div[class=tweet]
+
+item_title=	(.//span[class=username]//text())[2]
+item_link=	.//a[class=details]/@href
+item_content=	.//p[class=tweet-text]

morss.py

@@ -304,6 +304,14 @@ def Fill(item, cache, feedurl='/', fast=False, clip=False):
 
 	link = item.link
 
+	# twitter
+	if urlparse.urlparse(item.link).netloc == 'twitter.com':
+		match = lxml.html.fromstring(item.content).xpath('//a/@data-expanded-url')
+		if len(match):
+			link = match[0]
+			clip = True
+			log(link)
+
 	# check cache and previous errors
 	if link in cache:
 		content = cache.get(link)