moved rvm and path specific stuff to .zlogin so its separated from the generic config

.zlogin

+source ~/.rvm/scripts/'rvm'
+
+PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
+PATH=/usr/local/bin:$PATH
+

.zshrc

 export ZSH=~/.zsh
 
-source ~/.rvm/scripts/'rvm'
-
-PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
-PATH=/usr/local/bin:$PATH
-
 # Load all of the config files in ~/oh-my-zsh that end in .zsh
 for config_file ($ZSH/lib/*.zsh) source $config_file