Fix issue 21

https://github.com/ded/R2/issues/21 addresses two issues:
1. first selector in @media queries is not replaced. This is fixed by adding a special case for handling @media in the parsing regex
2. properties with * are not replaced. This is fixed by duplicating the propertyMap's values with * as prefix for the selectors
Fixed problem with brackts missing after media queries

Fixed problem with brackts missing after media queries. Previous commit was a faulty file. Sorry for the mess.
Merge pull request #23 from levynir/patch-1

Fix issue 21 - @media and * replacements