Add spanish translation

• Add spanish translation
• Fix wrong fees when using the application with multiple cryptocurrencies.

Hotfix

• Fix transaction issue for the Ledger Nano

Altcoins

• Add Dash support
• Add Dogecoin support
• Add Zcash support
• Restore translations

Hotfix

• Fix Litecoin scheme in QR codes

Bug fixes

• Add Litecoin mention to application description on Chrome Webstore
• Fix a synchronization bug during synchronization after switching between different currencies
• Prevent the application to open if the Ledger manager is already running

Add OP_RETURN support

• Add support for OP_RETURN output with the js API
• Bug fixes

Add Litecoin support for Ledger Nano S

• Add Litecoin support for Nano S
• Fix a bug during mobile second factor
• Small bug fixes

Hotfix

• Fix a bug in 1.6.2

Add max button

• Add max button for creating a transaction
• Fix a bug when creating transaction with no change

Fix mobile 2FA

• Fix mobile 2FA