Don't touch GPG or S/MIME signed messages. #15
Merge pull request #16 from lukele/master

Don't touch GPG or S/MIME signed messages.
added target to generate installation package
changed version to 1.5.3
updated install package generation script
updated project for Xcode 5
updated version to 1.5.4; added traditional chinese character set (big5 and derivates)
added link to home page
added ignore file for git