existing STK installation is found, and will not install
otherwise. This avoids problems when installing a new
stk on top of an older stk installation (e.g. old tracks
might show up in new installation, but not work).
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11953 178a84e3-b1eb-0310-8ba1-8eac791a3b58
extension), and improved installer to install visual studio and
openal redistributable packages.
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@1561 178a84e3-b1eb-0310-8ba1-8eac791a3b58
