Removed unneccessary build processes.
Update README.md

Updated README for Fedora 20 branch.
Update README.md
Merge branch 'fedora20' of https://github.com/morrei/vagrant-ethereum into fedora20
Provisioning moved into ansible dir.
New ansible group 'ethereum' is created with default vm as member.
New roles common
and
cpp-ethereum
Updated README
Fixed a typo.
Added vagrant-vbguest plugin to requirements
Added manual build of jsonrpc-cpp
Added a user message
Fixed cmake call
Restructured ansible playbook.
Updated README
Explicitely updating yum before system update
Disabling setting of hostname as that lead into trouble.
Merge pull request #1 from morrei/fedora20

Fedora20