merging from add-metrics to get dead state of a job
Merge branch 'add-metrics' of https://git-wip-us.apache.org/repos/asf/incubator-usergrid into import-pooja
- Added implementation for distributing jobs file wise

TO DO:
- test the above
- Add endpoint to get file Job information as now the current will only give overall job status
changed sub collections to connections
added endpoint for getting job details of individual file jobs
fixed creating connections
Fixed the getConnections in the response of Get /includes and also fixed the updation of Import Job status if file job dies
added code for parallel processing of multiple files
fixed get status of file job to return only the entities in list format and exclude the metadata information
trying to fix file status bug
fixed status changed error
 merging from remote master
added heartbeat and logging information
added implementation  for scheduling each file as a separate job and also added one endpoint for getting indicula status of each file
merged distrbuted and multithreading code