[Qt-creator] Append G++ location to path

[Charles N Burns]

A checkbox which allows Qt Creator's MinGW and other necessary paths
for command-line compiling would be a nice addition to the Qt Creator
installer. I often build Qt from command line and always have to
change this in the path every time I install a new version.
Alternatively or additionally, a batch file or icon which opens a
preconfigured command prompt (a la Visual Studio) would be a
convenient addition as well/

-- 
"Be kind, for everyone you meet is fighting a hard battle." --Plato