Recognize "\\" as css special char
Merge pull request #39 from cakebaker/fix_css_special_char

Recognize "\\" as css special char
add test for #39
bugfix #40
bugfix #41
fix @page syntax
minor
bugfix for #42
add attr 'infinite'
fix a typo
Add `currentColor` color keyword

Seealso: http://www.w3.org/TR/css3-color/#currentcolor
Merge pull request #43 from hail2u/currentcolor

Add `currentColor` color keyword