added components count

git-svn-id: https://svn.apache.org/repos/asf/maven/sandbox/trunk@1632805 13f79535-47bb-0310-9956-ffa450edef68
extract method to compare date from metadata and index page

git-svn-id: https://svn.apache.org/repos/asf/maven/sandbox/trunk@1632806 13f79535-47bb-0310-9956-ffa450edef68
support a few days difference between info in index page and in artifact metadata

git-svn-id: https://svn.apache.org/repos/asf/maven/sandbox/trunk@1632807 13f79535-47bb-0310-9956-ffa450edef68