Update NuGet Popper.js dependency version
Created by: FezVrasta
Right now the nuspec file is requiring for 1.11.x
but the first valid/non-broken NuGet version of Popper.js is 1.12.2
Created by: FezVrasta
Right now the nuspec file is requiring for 1.11.x
but the first valid/non-broken NuGet version of Popper.js is 1.12.2