Add support for IPFS >= v0.4.5

Thanks @mateon1 for #15!

v0.0.4

Add IPFS loaded pages options:

• Pin IPFS Resource
• Copy canonical IPFS address
• Copy shareable URL to resource at a default public gateway

Add node details to popup

v0.0.2

Adds options menu that let's you customize several parameters:

• IPFS node host
• IPFS node port
• IPFS node API port
• API stats polling interval
• Toggle redirection

v0.0.1

First release, supports:

• Peers count on icon and popup
• Redirect requests to local ipfs node toggle and functionality
• WebUI link

Demo: