Update resource/win/atom.sh from master

Author: damieng

resources/win/atom.sh

@@ -1,5 +1,9 @@
 #!/bin/sh
-pushd $(dirname "$0") > /dev/null
-ATOMCMD=""$(pwd -W)"/atom.cmd"
-popd > /dev/null
-cmd.exe //c "$ATOMCMD" "$@"
+if command -v "cygpath" > /dev/null; then
+  ATOMCMD=""$(cygpath "$(dirname "$0")" -a -w)\\atom.cmd""
+else
+  pushd "$(dirname "$0")" > /dev/null
+  ATOMCMD=""$(pwd -W)/atom.cmd""
+  popd > /dev/null
+fi
+cmd.exe /C "$ATOMCMD" "$@"