Key encoding
Merge branch 'refactor' of https://github.com/ucoin-io/ucoin-python-api into dev

Conflicts:
	lib/ucoinpy/documents/_ucoinpy_test/documents/test_transaction.py
	lib/ucoinpy/documents/ucoinpy/key/__init__.py
Removing old ucoinpy lib
New ucoinpy lib
Fixing key error
Merge branch 'refactor' of https://github.com/ucoin-io/ucoin-python-api into dev

Conflicts:
	lib/ucoinpy/documents/ucoinpy/key/__init__.py
InputSource from BMA
Fixing bug in Sources
More and more things starting to work again
Merge branch 'refactor' of https://github.com/ucoin-io/ucoin-python-api into dev

Conflicts:
	src/_cutecoin_test/models/ucoinpy/api/bma/tx/__init__.py
	src/_cutecoin_test/models/ucoinpy/documents/transaction.py
Remoing old ucoinpy
New ucoinpy api
Displaying sources should be better now