Clean up autocomplete code

[finnagin]

• [ ] Clean up create_load_db.py
• [ ] Clean up server.py
• [ ] Clean up cruft in the autocomplete directory
• [x] generate new autocomplete using create_load_db.py and kg2_node_info.tsv
• [x] update RTXConfig to track autocomplete.sqlite
• [x] update the database manager to track autocomplete.sqlite. This should put the file in RTX/code/autocomplete/
• [x] update the Dockerfile for the ARAX build

[finnagin]

Since the dockerfile part of this is complete I'm going to rename this issue.