Colorado toughened up its oil and gas rules. But how tough are they? Activists, community members see new law as their seat at negotiating table when it comes to where and how much drilling is allowed     When sponsors of a bill revamping Colorado’s oil and gas laws said the state’s regulations hadn’t changed much in decades, industry representatives were taken aback. In a statement reminiscent of previous debates, Dan Haley, president and CEO of the Colorado Oil and Gas Association