adding required depency on leap_msgs for leap_gestures
removing seed_angles from pr2_teleop_leap/pose_control_node.py. They're not required, and had been of the wrong form
catkinization of pr2_teleop_leap; removed dependency on prt_teleop_general in favor of using simple_robot_control
updating block_party launch files to use new nodes, moving to launch directory
removed block_party_demo, all launch files are in leap_demo. Removed redundant/incomplete launch files, and updated remaining ones to use new nodes
fixing initialization order to avoid errors