Put latest version on Nuget, remove experimental tag

[ErroneousFatality]

https://www.nuget.org/packages/q
Here on git it's stated that 2.0.3 is stable, but that version is not on Nuget and every 2.0.* version there is tagged as experimental

[ErroneousFatality]

I'm sorry, I acted too quickly, so I misread.
But there's no harm in putting the 2.0.3-experimental up on Nuget, so at least this issue isn't completely useless.