FIX: In String::grow std::length_error exception was never actually thrown - leading to crashes / runtime assertions and other nastiness).
FIX: In String::grow std::length_error exception was never actually thrown - leading to crashes / runtime assertions and other nastiness).

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two