Remove composer oh-my-zsh plugin
Add repl func and clean up
Add keep_alive func
Shorten source paths
Smarter vim install script (use tag 7.4.052 when compiling on deb)
Clean up
Implement keep_alive
Update RVM and don't install default packages
Quotes aren't necessary
Modularize + clean up install scripts
Add app_exists
Standardize function definitions