update Boost version to 1.49 for Windows in the Qt project file
update Boost version to 1.49 for Windows in the Qt project file

- add -s flag as we also use a static build in makefile.mingw

MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin