Major overhaul of document ids, required for resolution of various caching issues.
Fixing the stages to conform to new apis
Fixing compile error
Fixing compilation failure ;(
Removingcommented out code
Merge pull request #165 from jwestberg/caching-refactor

Refactored Document IDs to be consistent across DatabaseConnector
inital attempt to make hydra solr4 complient
Renames Solr 3.6 output stage to have a different artifact ID than the Solr 4 stage.
Fixes imports changed to due API changes.
Merge pull request #169 from laserval/solr4

Adds Solr 4 output support and creates separate Solr 3.6 stage
Upgrades elasticsearch dependency to latest stable.
Merge pull request #170 from laserval/elasticsearch-upgrade

Upgrades elasticsearch dependency to latest stable release