added a simplified fetcher bolt
Merge pull request #14 from jakekdodd/simple-fetcher

added a simplified fetcher bolt. 
Thanks Jake. Had a pretty similar one which I hadn't committed. Both approaches have their advantages and drawbacks but it is good to have a simpler version like this one.
upgraded crawler-commons to 0.5
[maven-release-plugin] prepare release 0.2
[maven-release-plugin] prepare for next development iteration
Spout implementations emit with a messageID
Fix incorrect filename in ReadMe file
Merge pull request #15 from GuiForget/fix-readme

Fix incorrect filename in ReadMe file
Update README.md

changed link for Storm + upped version numbers
bugfix keyValues : operation not supported when adding new values to an existing set
Merge branch 'master' of github.com:DigitalPebble/storm-crawler
ParserBolt : specifies IdentityHtmlMapper to prevent filtering of elements
KeyValues : added toString()
Added DebugParseFilter : dumps XML representation of DOM to a file - useful for debugging the ParseFilters
ParserBolt uppercases DOM element names
ParserBolt : can specify htmlmapperClassName via configuration
Fixed KeyValues.toString + get PrinterBolt to use it
Protocol implementations can be specified via Configuration
added missing config elements to crawler-conf.yaml
[maven-release-plugin] prepare release 0.3