add pwgen utility

Move common zsh/bash things into a separate file
Add pwgen utility to generate xkcd-style passphrases

bash_profile

@@ -33,49 +33,9 @@ shopt -s cmdhist
 export HISTCONTROL=ignoredups
 export HISTIGNORE="&:ls:[bf]g:exit"
 
-function local_pi() {
-LOCAL_PI_IP=$(en4ip)
-ssh -b $LOCAL_PI_IP pi@169.254.100.100
-}
-
-#################### Project Initialization Tools ###################
-function download_bootstrap() {
-    mkdir -p static
-    mkdir -p static/css
-    mkdir -p static/js
-
-    cd static/css
-    wget "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"
-    cd ../
-    cd js
-    wget "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"
-    cd ../..
-}
-
-function init_flask() {
-    mkdir -p templates
-    touch templates/index.html
-    curl "https://raw.githubusercontent.com/lewagon/bootstrap-boilerplate/gh-pages/index.html" > templates/index.html
-    FLASK_TEMPLATE="from flask import Flask, render_template, request
-
-app = Flask(__name__)
-
-@app.route('/')
-def index():
-    return render_template('index.html')
-
-if __name__ == '__main__':
-    app.debug = True
-    app.run()
-"
-    echo "$FLASK_TEMPLATE" > app.py
-}
-
-function weather() {
-    LOCATION=milwaukee
-
-    curl wttr.in/$LOCATION
-}
+if [ -f ~/.common_shell_functions ]; then
+    . ~/.common_shell_functions
+fi
 
 #Enable ~/.ssh/config host tab completion
 _complete_ssh_hosts ()