Code Merge Request #1: Fixed path handling on Linux. (merged)

On Linux the following issues were observed:

• in absolute paths leading / were replaced with -
• paths were force-lowercased, which is troublesome given Linux respects case in filenames.

Both of these issues were addressed.

[Ozkan Sezer]

Applied the patch after a little modifying:
https://sourceforge.net/p/vispatch/vispatch/ci/23b409554fe44679a4c7dc16e669ca8b6feeaf0e/

Tell me if there are still any issues in current git master.

Thanks.