WIP, first copy of adding users simulation
Mostly working.  Need to finish with setting cursor to empty on last request
add delete and put methods
new scenario for put and delete
new simulations for put and delete
Added extractor helpers

Updated UsersScenario to use helpers and constants
Merge branch 'USERGRID-252' of https://git-wip-us.apache.org/repos/asf/incubator-usergrid into USERGRID-252

Conflicts:
	stack/loadtests/src/main/scala/org/apache/usergrid/scenarios/UserScenarios.scala
Added session injection of a singleton token for removing post from report

Created 2 distinct scenarios for users get by username and get by page.
Updated delete to include 404 responses as valid
Added ability to run the tests via shell script
Fix broken tests that could not be run multiple times without deleting all data from C* and ES after each run.
Merge remote-tracking branch 'origin/two-dot-o' into USERGRID-252
Added license headers to files
Minor formatting changes only.
Changed tomcat configuration to be configured based on number of processors and threads per core
Fix to ensure tests passes when run multiple times without clearing database.
Ignored awaiting fix for USERGRID-267
fix deletes so we remove from all
Add enum to prevent mistakes in naming
get indexes for alias