Version 3.8.0: Frolicking Fennec

• No longer stop rebroadcasting transactions
• Add list of popular tokens held to the account detail view.
• Add ability to add Tokens to token list.
• Add a warning to JSON file import.
• Add "send" link to token list, which goes to TokenFactory.
• Fix bug where slowly mined txs would sometimes be incorrectly marked as failed.
• Fix bug where badge count did not reflect personal_sign pending messages.
• Seed word confirmation wording is now scarier.
• Fix error for invalid seed words.
• Allow Dapps to specify gas price as hex string.
• Add button for copying state logs to clipboard.