SPRINGFIELD — Changes are being made to the way legislative ethics complaints are handled in Illinois to improve independence and transparency.Democratic Sen. Melinda Bush of Grayslake and Republican Sen. Jil Tracy of Quincy sponsored legislation that would make significant reforms to the Legislative Ethics Commission.It passed both chambers Thursday, the same day Rep. Lou Lang, a Skokie Democrat, was accused of repeatedly harassing and intimidating a woman. Lang immediately stepped down from his post on the …