v1.4.0

In this release:

• Firefox 43+
• General refactoring and clean-up
• Protocol handlers in all processes
• A brand new menu under toolbar button
• Ability to PIN IPFS resources via go-ipfs API
• API Port is now configurable via Preferences screen
• Support for web+ schema prefix (used by Chrome)
• EXPERIMENTAL – disabled by default:
  • Relative URL rewriting and plain-text linkification of IPFS-like strings

Until it is reviewed by Mozilla, one can manually update here.

Big Thank You goes to @the8472 and @jedahan for their contributions!