Initial update to nuspec file to enable automated package creation and publication.
Initial update to nuspec file to enable automated package creation and publication.

Introduce variable that need to be passed at pack time (by build
script), updated dependencies, updated files to be included in package.

aarondcoleman/Fitbit.NET,AlexGhiondea/Fitbit.NET,WestDiscGolf/Fitbit.NET,amammay/Fitbit.NET,amammay/Fitbit.NET,aarondcoleman/Fitbit.NET,AlexGhiondea/Fitbit.NET,WestDiscGolf/Fitbit.NET,WestDiscGolf/Fitbit.NET,amammay/Fitbit.NET,aarondcoleman/Fitbit.NET,AlexGhiondea/Fitbit.NET