install_gnparser() now downloads the correct binary file
depending on the system it installs ‘gnparser’ on.
install_gnparser() because we download Go binaries from the
gnparser source repository (#7)gn_parse() and gn_parse_tidy():
format has been removed. batch_size and
ignore_tags were added to both functions, while
details was added to gn_parse() only. See docs
for details. (#11)gn_debug() is now defunct. the gnparser command for
this function was removed in gnparser v1 (#9)gn_version() was broken with the new gnparser version,
fixed now (#8)