Updated ipfs transport to use the latest ipfshttpclient, updated README, updated script files, added requirements file

[mibofra]

As written in the title

In the requirements file, there aren't the versions of the libraries, as I prefer to update the code when it breaks, instead of binding it to specific libraries revisions, to make it always up-to-date.

Anyway, this are the versions I'm using at the moment:

base58              1.0.3
ipfshttpclient      0.4.12
multiaddr           0.0.8
varint              1.0.2

[mibofra]

@ElOpio Why did you deliberately changed the master to accept the modifications, instead of accepting my pull request? i've seen the date of both commits, and my request is prior to the 31 Jul, the date of your last commit.

[come-maiz]

Sorry @mibofra! I did it quickly in my local machine without checking if something new was in github.
Give me a few days and I will resolve your conflicts, add the nice changes you made and I didn't, and add you as a contributor.

Thanks!

[mibofra]

Don't worry, it can happen. My changes are more or less the same, updating it to use the latest ipfshttpclient, as said before. Just I need to use the transport, so I wanted to contribute back the modifications.