Include clojars repo

Maven was failing with:

    [ERROR] Failed to execute goal on project stormscraper: Could not resolve dependencies for project com.github.tjake.stormscraper:stormscraper:jar:0.1.0-SNAPSHOT: Could not find artifact storm:storm:jar:0.8.2 in central (http://repo.maven.apache.org/maven2) -> [Help 1]