v0.7.0

• feat: new stats view (Closes: #24)
• feat: notification if a new version is available
• feat: show alias instead of pubkey en transactions view (Closes: #58)
• chore: script for easy updating
• chore: move settings, chat and trading links to header
• chore: remove navigation from settings view
• refactor: server schema
• fix: failing query on 'forwards' view and 'closed channels' view (Closes: #57)
• docs: update README