Merge branch 'custom-dump'
call R CMD INSTALL on Windows
Merge branch 'install-build'
change Windows testing
Merge branch 'install-build'
fix check for Windows, again
Merge branch 'install-build'
Merge pull request #123 from krlmlr/install-build

Call R CMD INSTALL --build on Windows
Merge remote-tracking branch 'craigcitro/master'
Revert "Merge pull request #123 from krlmlr/install-build"

This reverts commit 278f194701e7074f7405a7787bc285e80f04ac2f, reversing
changes made to 27b13ee40d2b75aea014e99b42eadccdc43f5291.
call R CMD check with --install-args=--build on Windows
Merge branch 'install-build'