Removed maximise_concurrency and added analysis_stats.priority to guide the scheduler; improved scheduler and LSF meadow

removed 'sema_fan_branch_code' parameter since you can now set up a semaphored group via PipeConfig' language

analysis_data may be overcrowded with inserts during dataflow with input_id longer than 255 characters

Incorporate ENV hash into the tree of possible options in order to be able to "require" a value. And a bit of config inheritance cleanup.

Switching from DBI to DBConnection; data_dbc() as the main focus point; standaloneJob.pl examples of basic building blocks

the schema did not allow more than one job_message per second from one attempt. This limitation has been removed