Revert "Cutecoin 0.5 arrives !"

This reverts commit 2617284d419af62e5a2b91b643bc1bd327447f6a.
Revert "Revert "Cutecoin 0.5 arrives !""

This reverts commit ebbbc39093a2ad96c85b3d1616fee2c6499582ed.
UI refactoring for a better organization
Refactored Wot tab
Wallet content now show available sources, while Transactions sent and received will display latest transactions sent and received
Some fixes in transactions
Merge branch 'master' into dev
Requests are now cached when they go throught a community object
Signing on the way. There is a bug becuse of ucoin API using keyword "self", and it's conflicting with python self keyword.
Same parameters as ucoin-cli, but still cannot sign...
Signing is now available !
Adding contextual actions in Members tab
Pubkey publishing added.
Fix bug in wot if public key is unknown
Implement sign identity action and add transaction action in wot

Refactor wot to better handle node/arc metadata
"add identity as contact" action in wot
Commit before merging
Merge branch 'wot' into dev
Membership demands : ok
Multiwallet feature is live !