Fall 2012 Hiveswarm update
added libraries necessary for compilation
Update build.xml

Fixed formatting
updates to readme and user_agent_parser
fixed small omission in readme for iso_year_of_week
updated to work with CDH4. Removed Ant buildfile, replaced with Maven. Changed directory structure to fit what maven expects. Fixed small error with curdatetime
forgot to include pom.xml\!
updated pom.xml to create in project repo (so that external/new users can compile on first run). Updated readme