STOKE-ON-TRENT charity The Hubb Foundation and Staffordshire digger giant JCB have today (February 16th) launched a unique partnership to ensure thousands of vulnerable children across the city have free half-term holiday activities throughout the year. JCB apprentice George Lowe (19) serves up a healthy meal to St Mary's Primary School children.    The three-year £375,000 partnership will fund 1,000 activity places every half term in February, May and October at up to 35 Sto