force nuget to version 2 to allow tavis\appveyor builds to succ
force nuget to version 2 to allow tavis\appveyor builds to succ

https://github.com/fsprojects/ProjectScaffold/commit/e7c9ee4d2d22311cf9d973b26affa878a188f94e
s952163/SQLProvider,bennylynch/SQLProvider