Acid Test – Bitcoin Must Break $7,800 for Bull Reversal Bitcoin (BTC) continues to mount a recovery despite the recent bearish "death cross" chart event. As of writing, bitcoin is changing hands at $7,400 on Bitfinex and the average price on leading exchanges, as represented by CoinDesk's Bitcoin Price Index, is seen at $7,380. The cryptocurrency's 15-percent rally from the 54-day low of $6,425 set on April 1 is encouraging and pretty much in line with the historical relative strength…