Error when using media query "orientation: landscape"

[sjscotti]

Hi!
I have started using your repository to switch between a desktop (orientation: landscape) and mobile (orientation: portrait) versions of a website. However, when using these orientation media queries, I was getting errors that I traced to the parsing of the media query in MQParser.prototype.parse in the file device.js. Apparently, using and as the criteria to split up the elements of a media query did not take into account that and is included in the word landscape. I developed a simple workaround to replace landscape with a dummy word, and I substituted landscape back again after the query was parsed. However, you may want to update the code to handle this situation in a more elegant manner. Thanks for developing this very useful capability!