Almost done with "new offer" for markets

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
new offer almost done

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Finished "new offer" + added Usage Credits to GUI.

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Fixes to Markets Screen.

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #55 from FellowTraveler/master

added "new offer" wizard to markets screen. Also added UsageCredits GUI warnings.
int64_t casted to qlonglong for QVariant on Qt4 

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #56 from FellowTraveler/master

int64_t casted to qlonglong for QVariant on Qt4