starting usage work
updated readme to not quote lists and use code blocks.
fixed the python codeblock
finished readme explanation of usage. it's super simple but should get the general idea across
removed most helper functions which no longer.. helped
made the simid for time-related queries an optional parameter which defaults to 1
cleaned up some comments
cleaned up interface to method call for getting tables in the db
explained usage in the readme and cleaned up some interfaces/comments