Add sourcemaps
Add sourcemaps

Fixes #44

nlesc-sherlock/punchcardjs,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/punchcardjs,nlesc-sherlock/spiraljs,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/spiraljs,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/punchcardjs