Added coin control, more precise work checking.

Also added unlock button on overview page,
addnode rpc, mac icons, and wallet wallpaper.

Improved text color of splash screen.
Adding many changes described in the prior commit.
adding back the pro file, now for windows
Best refined pro file for windows build.
Fixed the version.
Making changes suggested by ahmedbodi
Correct version in pro file.
Fixing CreateCoinStake for correct rounding cutoff.
Fixing import in coincontroldialog.
Removing problematic linking flag.
Telling qt to include basic libs in the pro file.
Merge pull request #22 from CoinWhisperer/master

Coin control and block validation