Merge pull request #53 from mdmoss/master

Add group member card_uid retreival
Merge pull request #54 from mdmoss/master

Fix event and swipe to_json
Replace carduid to card in json
Merge pull request #55 from cmanou/master

Fix some json
add to json to card
Merge pull request #56 from cmanou/master

Fix to json error
Fix adding members to groups