Update package version and travis runners

Merge pull request #21 from fdvj/development

Add support for different types of id (primary key)

Merge pull request #20 from fdvj/development

Fixes issue with string arrays

Merge pull request #15 from fdvj/development

Development

Merge pull request #14 from fdvj/development

Development

Remove unused library

Change wolfpack version

Add revision and change log for issue #8

Add support for loading models on process level

Finish README. Ready for publish