Merge pull request #100 from vonrosen/ari-4061

Allow discovery of urls in content attribute of meta tags.
Merge branch 'master' into qa
Merge branch 'qa' of github.com:vonrosen/heritrix3 into qa
somewhat ugly fix to handle exceptions from the bean browser like java.lang.RuntimeException: not implemented at org.archive.modules.fetcher.BdbCookieStore$RestrictedCollectionWrappedList.get(BdbCookieStore.java:92)
Merge branch 'bean-browse-cookiestore-exception' into qa