~$ \curl -sSL https://get.rvm.io | bash -s stable --ruby=2.1
~$ gem install bundler
mkdir -p ~/src
cd ~/src
wget http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.3.tar.gz
tar xzf ruby-2.1.3.tar.gz
cd ruby-2.1.3
./configure
make
sudo make install
sudo gem install bundler