Formatter UDF does not replace Hostname, it just transform it to upper
case;
Revert "Formatter UDF does not replace Hostname, it just transform it to upper case;"

This reverts commit 380a9e4fc6d9127c0a8252dca7ce7bab3bf84b00.
Merge branch 'master' of https://github.com/renatoochando/Openbus.git
+ Pig: scripts to aggregate metrics by hour using P90