* updated util and libwallet with thiserror
* update impl crate to thiserror
* api crate converted to thiserror
* update of controller crate to thiserror
* update final bin + tests to thiserror
* update unused import
* remove failure derive
* reset import of grin to master
* update cargo lock
* update from master
* remove grin libs re-export from util crate :(
* temp local
* point code at bleeding edge grin master branch
* updated util and libwallet with thiserror
* update impl crate to thiserror
* api crate converted to thiserror
* update of controller crate to thiserror
* update final bin + tests to thiserror
* update unused import
* remove failure derive
* reset import of grin to master
* update cargo lock
* update from master
* debugging tor sends
* use fixed yeast version of hyper-socks2
* send command working according to slatepack
* changes to handling proof address
* modifications of recieve command to work with slatepack and to attempt to return to sender via TOR
* finalize command tested
* attempting to add invoice processing
* fixes to tests, propagation of test mode where needed
* modify return values of api functions that can send as sync
* cleanup, testing and post_tx function
* revert changes to API, many test fixes
* deprecate http on the command-line warning
* recreate PR from #400
* first tests with slate encryption
* simplify slatepack model to contain encryption header in payload, and add de/ser tests
* update tests and confirm slatepack encryption working
* remove recipient list, add version check warning
* make transaction field in V4 Slate optional
* add mutable/non mutable version of tx getter
* removal of mut references where not needed
* remove more muts
* update from master
* update from master
* test fixes
* initial addition of ov3
* move libwallet address functions into OnionV3Address type
* incorporate OnionV3 type where possible
* factor out manual dalek pubkey manipulations
* corrections due to test failures
* change json-rpc example to use ov3 for payment proof recipient address
