Updates archlinux, ruby, python and npm packages

updates.md

update archlinux packages

sudo pacman -Syu
sudo yaourt -Syua

update npm packages

npm outdated
sudo npm update
sudo npm update -g

update pip3 packages

pip3 list --outdated
pip3 freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 sudo pip3 install -U

update pip2 packages

pip2 list --outdated
pip2 freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 sudo pip2 install -U

ruby jems

gem outdated
gem update --system
gem update