By MarketsFarm WINNIPEG, April 30 (MarketsFarm) – The Canadian dollar was slightly higher on Thursday as increases crude oil prices edged out losses in the stock markets. The dollar finished the day at US$0.7189 or US$1=C$1.3910, compared to Wednesday when it closed at US$0.7183 or US$1=C$1.3922. Benchmark crude oil prices were stronger on Thursday as