Merge pull request #5 from OpenDTP/preprod

Preprod
Merge pull request #6 from OpenDTP/dev/ref#27

Dev/ref#27
Merge pull request #9 from OpenDTP/preprod

Preprod
Update .gitignore

Adding cxx and so files
Merge branch 'preprod' of github.com:OpenDTP/OpenDTPAPI
Resolving conflict