Javascript line continuations in strings causes errors

[shaicoleman]

vendor/plugins/asset_packager/lib/jsmin.rb:113:in `action': Unterminated string literal (RuntimeError)
    from vendor/plugins/asset_packager/lib/jsmin.rb:195:in `jsmin'
    from vendor/plugins/asset_packager/lib/jsmin.rb:205

Which is caused by code such as:
styleSheet.addRule(
'.typeface-js-selected-text',
'-ms-filter:
"Chroma(color=black)
progid:DXImageTransform.Microsoft.MaskFilter(Color=white)
progid:DXImageTransform.Microsoft.MaskFilter(Color=blue)
alpha(opacity=30)" !important;
color: black;
font-family: Modern;
position: absolute;
white-space: pre;
filter: alpha(opacity=0);'
);

[cainlevy]

you may try http://github.com/cainlevy/asset_packager/commit/4430b2cbb7b43f4560dcf67938265dcffb056623