0.8: Moved runtime files to inst/share per Kurt Hornik's recommendation

0.7: Updates to build to fix CRAN notes and Windows build issues
  - Updated URLs in man pages
  - Added .Rbuildignore file
  - Updated configure script to be modeled after https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Configure-example
  - Updated load.R and Makevars per suggestions by Brian Ripley and Uwe Ligges
