Localize currency sign

[MilanJa]

Not all money is in dollars so when you format as money you should be able to add for example a euro sign instead of always a dollar sign. Or I could just change a single line, maybe this is too nitpicky

https://github.com/ndreckshage/roughdraft.js/blob/master/jquery.roughdraft.0.1.3.js#L496

[ndreckshage]

i think thats a good idea, ill look into it