Problems finding license on Windows

[trulsf]

With the recent version (0.17.0) there is a problem detecting the license file with a standard installation for Windows (not using the Xpress_jll). The environment variable XPRESSDIR will by default be set to the folder of the installation (e.g 'c:\xpressmp') while the license file resides in the 'bin' folder ('c:\xpressmp\bin').

I guess this could be added as one of the candidate locations of the license checking in 'license.jl'. The specific check for Windows based on the use of libdir does not work as the value is empty ("").

[odow]

Okay. Looks like we can just add a new line after

Xpress.jl/src/license.jl

Lines 24 to 26 in c885d03

	# Search in `xpress/lib/../bin/xpauth.xpr`. This is a common location on
	# Windows.
	push!(candidates, joinpath(dirname(libdir), "bin", XPAUTH))

[jd-lara]

same is happening in Mac

[odow]

I'll fix this now

[odow]

Can you try #276?