Reorganized imports, made run_dot in charge of file operations since it already takes a file_name argument and the others seem to take run_dot's output and write it to file_name anyway.
Dot manager fixed up (after a bug with imports) and added lookup table for augassign ops
Cleaned up imports, prepped for push to main branch
Merge pull request #27 from pyprogrammer/master

Improvements to dot_manager.py and added augassigns to pybasicconversions.