Just weeks ago, a bitter dispute almost tore apart the €35 million property empire controlled by the developer Greg Kavanagh and his brother Hugh. The case was settled just days after it was taken, but the action outlined a series of friction points between the two brothers, ranging from a late-night altercation after a rugby match to an ill-fated property play in New York. However, in his pleadings, Hugh Kavanagh also pointed to Bezzu, a recently launched app that advertises the wares of hundreds of mainstream retailers allowing customers to shop locally from their mobile phone. His brother Greg is…