fixed some table reference bugs
added asynchronous function to copleted and overview tables
Merge pull request #202 from paczian/master

speed improvement
Merge pull request #203 from wtangiit/master

support sorting jobs by field in GET /job api call
Merge pull request #204 from wtangiit/master

job requery related fix: resolving conflict in querying by fields and retrieving active/suspend/registered jobs