Only instrument return values if options.trace_function_entry is enabled
added TODO comments for some optimizations to try later
log the file path with errors about failed parses
scrape every object 2 levels deep by default instead of 1
sometimes the __lookupGetter__ key exists in an object without its value being the function I expect, so now I check that it's a function instead
some objects don't have hasOwnProperty, so now I check that it's a function first
revert to scraping objects to depth 1 by default, for performance reasons
bump to version 0.1.7