clean-css confuses IDs and property names

[Wilfred]

Minifying the following:

#content {}

#foo {
    content: "\00BB  ";
}

(note two trailing spaces)

Produces:

#content{}#foo{content:"\00BB "}

with only one trailing space. Changing the ID name fixes this.

[GoalSmashers]

Thanks @Wilfred for raising this issue! Will go into 0.9.2 soon.