emit parserstarted/finished events.  Also, reenable some of the non-parsed quantities so the test runs correctly.  However not everything is enabled yet.

include new version of ase octopus parser because it is not out yet.  This fixes some Python3 compatibility issues and contains other improvements.

clean up unused bits.  Move common functionality into new util module.  Write different parser log outputs to different files.  Convert metadata to correct datatypes and get exact metadata names right (case sensitive)