fix a range of small bugs, update config file and documentation to be compatible with 'launch_app' functionality

fixed query which tests for existance of remote scope column, fixed missed cursor update, added a skip of sqdl-sync when scope value is None

fix issue where sync to remote database would no longer work as a result of the scope column. updated sql script of initial database version

modified sqdl database connections from cursor-based to connection-based to prevent potential lock-outs. fixed bug where export error on file read would retry every 5 seconds forever, now quits after 30 failed attempts

cleaned up database connection management between writer, exporter and uploader. incorporated local database queries for exporter

remove testing logging statements, refactor names, infer proper scope names from config and fix sql statements

Resolve "update documentation and readme"

Closes #19

See merge request !19