Truffle repository conversion

[Andreas Woess]

Dear Truffle developers and users,

we've recently moved Truffle to a separate repository as announced 
earlier. I'd like to give you a heads-up that we're going to:
(a) rewrite the changeset history to prune unrelated files inherited 
from the previous repository and shrink the repository size
(b) change the directory structure to mx2 layout, i.e., the 'truffle' 
directory will go away

As a consequence, you will have to reclone the repository once the 
conversion is done; but more importantly, if you have unpushed changes 
or patches, please try to get them in within the next days while we wait 
for the dust to settle. If you need more time or help with the 
migration, let me know. If you're only using .jar files, you're not 
affected.

- andreas