vardpoor v0.20.1

• Bug fix in vardannual regarding the R version 4.1.0 (get() now signal an error if the first argument has length greater than 1)
• Function vardbootstr has been removed from the package as it is in development (exporting of the function has been disabled, see the .Rbuildignore)
• Bug fixes for some examples
• Partial spell check for documentation
• Change of the package maintainer