Former tycoon Sean Quinn was said to have been stunned last September when the family name was excised from the business he founded in 1973. Goodbye Quinn Industrial Holdings, hello Mannok – a rebranding inspired by the Irish words for Fermanagh, Fear Manach meaning man/people of Manach. The name change was part of a long and difficult transition for the Derrylin based group, away from the shadow of Quinn. The 73-year-old was Ireland’s richest man until his empire came crashing down after a €2.3 billion market gamble on Anglo Irish Bank’s share price went horribly wrong in 2008. Years of…