Merge pull request #58 from marcSchneiter/master

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Merge pull request #59 from marcSchneiter/master

added tests
Updated sharing
Merge pull request #60 from broggi/master

Updated sharing
Some small changes
Some fixes in sharing etc.
Merge pull request #61 from broggi/master

Some fixes in sharing
Added some javadoc
Merge pull request #62 from LukasGalliker/master

Added some javadoc
Finished the java Documentation
Merge pull request #63 from LukasGalliker/master

Finished the java Documentation
Fixed Sharing & did some cleanup
Shoppy v1
Merge pull request #64 from broggi/master

Shoppy v1 Release
new implementation of the database-handling