Detect terminal color support

[ashaduri]

Hi,

Right now if I run a flexi_logger-enabled application from terminal (on Linux) I get a properly colored output.
However, if I launch it from another application (without terminal) and capture its output to show it in GUI, I still get color escape sequences in the text, and the displayed text is garbled in the GUI.

I think flexi_logger should use ::atty::is(::atty::Stream::Stdout) or similar to check whether colored output is actually supported.

Thanks!

[emabee]

Thanks for the proposal! It is incorparated in version 0.15.8.

[ashaduri]

Thanks for such a quick response!