Installation wizard does not detect RRDtool version correctly

[BSOD2600]

The rrdtool version detection used for the installation wizard is not correctly detecting/setting 1.7.0. however in the Technical Support page, the version detection is working. Yes, on Windows ;)

[cigamit]

Interesting.

[cigamit]

Windows does not leverage standard error to standard output redirects. Problem solved.

[netniV]

Actually, windows does use standard redirects so I'm confused why this is an issue. I am often using 2>&1 when running a command so I would recommend that we research this further.

https://support.microsoft.com/en-gb/help/110930/redirecting-error-messages-from-command-prompt-stderr-stdout

[BSOD2600]

This is still an issue with the latest 1.2.5 dev branch.