DLL now use static linkage of the MS c runtime

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Fixed one path in xlam where it should have been CoolProp_x64.dll instead of CoolProp.dll

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge pull request #340 from CoolProp/excel_woes

Excel woes