added HTSSOP24 footprint
fixed up some inadvertant errors introduced into HTSSOP28 footprint
fixed silkscreen error on hTSSOP224
added MAX1555 lipo charging chip
fixed footprint filter for microusb component
added BLE112 footprint and fixed up component footprint filters
JST connector footprint for battery
added bourns trimpot footprint and fixed footprint filter in pot symbol