Merge pull request #4 from Weborama/master

Replace protocol based on async-hhtp-client with one taken from Nutch
Merge pull request #5 from Weborama/master

Added ConfigurableTopology
CrawlTopology now extends ConfigurableTopology + added crawler-conf.yaml
Apache headers; IndexerBolt and ParserBolt rely on Storm config; updated crawler-conf accordingly
Added license headers to all Java files
Merge pull request #1 from DigitalPebble/master

Synchronize with master from DiPe