Install CentOS ruby 1.9.3

	Step 1: Upgrade Packages
	# yum update
	# yum groupinstall "Development Tools"
	Step 2: Installing Recommended Packages
	# yum install gcc-c++ patch readline readline-devel zlib zlib-devel
	# yum install libyaml-devel libffi-devel openssl-devel make
	# yum install bzip2 autoconf automake libtool bison iconv-devel
	Step 3: Install RVM ( Ruby Version Manager )
	gpg2 --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 curl -L get.rvm.io | bash -s stable
	Step 4: Setup RVM Environment
	source /etc/profile.d/rvm.sh
	Step 5: Install Required Ruby Version
	# rvm install 1.9.3
	Step 6: Install Another Version ( if Required )
	# rvm install 1.8.6
	Step 7: Setup Default Ruby Version
	rvm use 1.9.3 --default if centos7.0 rvm install 2.2.4 rvm use 2.2.4 --default
	Step 8: Check Current Ruby Version
	# ruby --version
	Update rubygems
	$ gem update --system
	$ gem install bundler
	#Test ruby and rubygems are working
	#Close shell and reopen for changes to take effect
	$ruby -v
	$gem --version
	# Rails
	$ yum install sqlite-devel
	$ gem install rails
	$ gem install sqlite3