Update documents about zeronet

[HelloZeroNet]

add goal specific donation addresses: $.get("https://mainnet.helloblock.io/v1/addresses?addresses=1QDhxQ6PraUZa21ET5fYUCPgdrwBomnFgX", function(res) { console.log(res) })

[HelloZeroNet]

Faq:

• How to use it with Tor? (update needed)
• Is it possible to install it on remote machine?
• Do I need open port to create new site?
• What happens when someone hosting malicious content?
• Openssl on centos

[makdisse]

• How to fix the '1 file upload failed' issue?

[Idealcoder]

Can I suggest to create a document page explaining how to create a namecoin .bit address?

[shakna-israel]

The single IP setup is something that'd probably be worth having in there.

[HelloZeroNet]

FAQ WIP: http://zeronet.readthedocs.org/en/latest/faq/

[TheNain38]

It should also be said for site developpers the differences between creating a ZeroNet site to a non ZeroNet site. For exemple: links should contain attribute target="_top" or target="_blank" to works as expected

[MuxZeroNet]

Handshake

Needs more documentation on Handshake and GetHashfield. #987

[purplesyringa]

@HelloZeroNet Wondering if this can be closed.