Eth-wallet

New
* Now, you can get `root_private_key`, `root_public_key` and `compressed` public key.

Bug Fixes
* Fix `public_key_hex` and `public_key_base58` extended key.

Dependency
* Change ecdsa version `0.15,<1` to `0.13,<1`

New
* Added `get_mnemonic_language` function on utils.

Improvements
* Now, you can check mnemonic without language, language is now optional.
* Now, you can get `from_mnemonic` without language.

Changes
* When getting wallet `from_entropy` now default language is changed to `english`.

Fix bugs.

Changes
* Removed unnecessary parameters.