qtcreator: 3.2.0 ready, autotoolsplugin useable

qt-creator-3.2.0-MSYS2-autottools-run-shell-scripts-via-sh.patch
finds sh.exe relative to qtcreator.exe, and wraps the calls to
ProcessParameters through sh.exe, as -c command and also puts
the folder of sh.exe in the environment for these calls.