Improves feed url detection by using regexes.
Conflicts:
	src/de/shandschuh/sparserss/service/FetcherService.java
Makes regex patterns final.
Conflicts:
	src/de/shandschuh/sparserss/handler/RSSHandler.java
	src/de/shandschuh/sparserss/service/FetcherService.java
Merge pull request #6 from ildar/master

improve feed discovery