c_rehash: delete non-symlinks on windows and use current dir as default, so that double-clicking c_rehash.rb works
c_rehash: delete non-symlinks on windows and use current dir as default, so that double-clicking c_rehash.rb works

oneclick/rubyinstaller2,larskanis/rubyinstaller2,oneclick/rubyinstaller2,larskanis/rubyinstaller2,oneclick/rubyinstaller2,larskanis/rubyinstaller2