Update TouchScript.TUIO.csproj

Post build xcopy will fail if there are spaces in $(ProjectDir).
Update TouchScript.Windows.csproj

Post build xcopy will fail if there are spaces in $(ProjectDir).
Update TouchScript.Editor.csproj

Post build xcopy will fail if there are spaces in $(ProjectDir).
Update TouchScript.csproj

Post build xcopy will fail if there are spaces in $(ProjectDir).
Merge pull request #86 from PharaohMaster/master

Fixed possible xcopy "exit code 4" errors when there are spaces in solution paths.