CORE-3839 Marked places where renewals need to happen.
Adapted worker-test to use mock beanstalk state change functions
aliased the clojure-common.infosquito.mock-beanstalk namespace
Removed redundant test driver core-test
Adapted tests to not assume knowledge of the mock-beanstalk structure.
added testing for releasing of current job on failure
For consistency's sake, renamed all instances of task to job.
Renamed job-related properties for better consistency.
CORE-3886 Inlined the index entry jobs into the index members job

When index the members of a folder, Infosquito no longer queues an index
entry job for each member.  Instead, it indexes the entry immediately.  
Merge branch 'dev' into 1.8
CORE-3886 Keeps an open connection to beanstalk

The process attempts to keep an open connection to beanstalkd.