* Problem: BigchainDB config has stale/deprecated parameters
- Remove `keyring` and `keypair` from config
- Update tests
- Add `tendermint` config
* Fix flake8
* Update some naming conventions and redundant changes
* Remove redundant routine `fast_query`
* Remove deprecated parameters and descriptions
* remove some more unwanted code
* Problem: Two flake8 errors made Travis fail
Solution: Fix the two flake8 errors
* Address comments
- Remove reference of nodes_except_me and me_private and me
as attributes of BigchainDB instances
- Update and re-add test(s)
- Do not introduce `tendermint` in configuration instead handle that
in a separate PR along with docs
* Address comments
- Remove tests that are already covered with 2.0
- Remove tests that are no longer relevant
- Add TODO for more cleanup
* Remove tendermint config from configure command
* Fixed 2 PEP257 compliance errors
* Upgrade Tendermint to 0.19.7 except for Docker image, which is still at 0.19.2
* Problem: backlog_reassign_delay is defunct but still listed
Solution: remove all mentions of & calls for backlog_reassign_delay
* Problem: RethinkDB, change feed, old mongo, admin interface are not supported any longer.
Solution: Remove unsupported functionality. Bring the MongoDB backend implementation completely to the localmongodb package. Fix the test setup.
* Problem: Nothing depends on multipipes any longer.
Solution: Remove multipipes from setup.py.
* Problem: The how-to-run-tests doc uses --database-backend.
Solution: Do not include the --database-backend option into the documented pytest usage.
* Problem: The backends docs are outdated.
Solution: Document MongoDB as the default and only backend for BigchainDB.
* Problem: The inputs fixtures uses old blocks API.
Solution: Change the inputs fixtures to use the new blocks API.
* Problem: rethinkdb package is not used anymore.
Solution: Remove the rethinkdb dependency from setup.py.
* Problem: The abci-marked tests use outdated Mongo conn.
Solution: Replace MongoDBConnection with LocalMongoDBConnection for them.
- If spent=None return all outputs
- If spent=True return only spent outputs
- If spent=False return only unspent outputs
- Updated documentation
- Add the ability to return only spent outputs in core
- Added and update tests
* Remove asset.validate_asset and move its validation checks to other areas
* Move Asset.get_asset_id to Transaction
* Remove Asset and AssetLink models
* Add test against creating TRANSFER transactions with bad asset
* Allow AssetLinks to be used in place of Assets in the Transaction Model and enforce `Transaction.transfer()` to only take an AssetLink
* Remove AssetLink's inheritance from Asset
* Remove id from the Asset model
* Fix get_txids_by_asset_id query for rethinkdb after removing asset's uuid
Because `CREATE` transactions don't have an asset that contains an id
anymore, one way to find all the transactions related to an asset is to
query the database twice: once for the `CREATE` transaction and another
for the `TRANSFER` transactions.
* Add TODO notice for vote test utils to be fixtures
* Update asset model documentation to reflect usage of transaction id
* Fix outdated asset description in transaction schema
