Merge pull request #22 from broggi/master

Small fixes so it can be run
Merge pull request #23 from broggi/master

Added DisplayItemActivity Updated Database
Merge pull request #24 from broggi/master

Addded ListItemAdapter etc.
Merge pull request #25 from broggi/master

Implemented Add/Delete Items
Tried to implement edit shopping List
Edit Shopping List
EDIT SHOOPING liST
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Merge pull request #26 from cryptedp/master

Edit Shopping List