(Reuters) - European shares ticked lower in early deals on Thursday, as investors cautiously awaited manufacturing data to gauge the health of euro zone economies ahead of the Easter holiday.The pan-European STOXX 600 index edged down 0.1 percent by 0725 GMT, with all countries' bourses in the red.Better-than-expected economic data out of China on Wednesday propelled the pan-region index to a sixth day of gains. The STOXX 600 index hit an eight-month high this week and it has shrugged off a..