Digicel has had a good year. By the skin of his teeth, it’s looking like Denis O’Brien might avoid having to hand over 49 per cent of the company to bond investors.   In April last year, Digicel reached a deal with creditors, who accepted a $1.7 billion write down in what they were owed. In exchange, O’Brien put $60 million into the business and issued $200 million of convertible notes. The notes would convert into a 49 per cent stake in the business if Digicel failed to refinance a $920 million bond coming due in March of 2023. Why…