Selector: Remove "#" exception for identifier tokens
Selector: Remove "#" exception for identifier tokens

Port Sizzle test change from:
https://github.com/jquery/sizzle/commit/f204a6112216f31685717d9fc1bf6cabf42b2ef1

roytoo/jquery,jquery/jquery,roytoo/jquery,jquery/jquery,roytoo/jquery,jquery/jquery