Replace QString::toStdString and QString::fromStdString with QString::toAscii and QString::fromAscii

Signed-off-by: Muhamad Lotfy <mhesham.fcis@gmail.com>
Add CaseVisualizer.vcxproj for VS 2010

Signed-off-by: Muhamad Lotfy <mhesham.fcis@gmail.com>