fix. ensure that all timedelta calls have kwargs for timedifference casted to int
fix. ensure that all timedelta calls have kwargs for timedifference casted to int (theshold)
rm. tags view. obsolete.
rm. unused Connector ref.
add. structure to store job status types: JOB_STATUS
rm. reference to "tags" view.  This has been removed.
add. method unpack_fields.  This pulls values from a named tuple into an OrdereDict.
add. method unpack_fields also checks for interface 'todict' which is used by recordtype objects
add. new sub package to contain growing api functionality
mod. migrate engine module functionality into sub package.
add. constants for request_manager module
add. new module for managing jobs.
mod. begin integration with request_manager
add. definition of API exception moved here.
add. define all request related meta-data in this module (request).
add. implement adding item from request queue to wait queue
mod. now consistent with new request module and other package level changes.
mod. renamed module 'request' to 'request_meta', naming coflict.
add. wait, run, and response functionality for request_manager
add. OrderedDict which stores API responses.