By David DeKok HARRISBURG, Penn. (Reuters) - Pennsylvania Governor Tom Wolf proposed a $29.9 billion budget on Tuesday that includes $2.5 billion of net tax increases for fiscal 2016. Wolf's sweeping revamp of the state's tax system would raise sales and personal income taxes while lowering property and corporate taxes, he said during his address to lawmakers. "Pennsylvania will not improve until it rebuilds the middle class," Wolf said. Wolf's speech attempted to address myriad problems facing the state, from a sluggish economy to pension underfunding and a $2.3 billion budget deficit.