Fixed typo with embed option
 Pack should be more precise with putting mimetype first
skip empty lines in config
make options file format allow end-of-line comments
Should be setting image to relative path (Thanks Deyan)
Merge pull request #37 from dginev/mimetype_first_for_archival_formats

Pack should be more precise with putting mimetype first
Merge branch 'master' of github.com:brucemiller/LaTeXML
Merge remote-tracking branch 'upstream/master'