The /O2 option optimizes speed in the library. I see substantial improvement!!!
Includes compiler option /O2 to increase speed.
And creates nessesary folders for output files..

Signed-off-by: Martin Ryhl Kærn <pmak@mek.dtu.dk>
Merge pull request #1 from kaern/coolprop

The /O2 option optimizes speed
Merge pull request #30 from kaern/master

Not sure this works (I am getting somewhat lost in all this pull merge commit push things)