Add support for .dev.sh install-specific shell configuration

bootstrap.sh

@@ -97,6 +97,12 @@ function install {
   fi
   echo "Done"
 
+  echo "Creating empty .dev.sh..."
+  if [ ! -e ~/.dev.sh ]; then
+    echo "# Create install-specific shell configuration here." > ~/.dev.sh
+  fi
+  echo "Done"
+
   echo "Tightening permissions on \$HOME..."
   if ! $dryrun; then
     chmod o-rx $HOME

config/zshrc

@@ -137,6 +137,10 @@ then
   source ~/.cargo/env
 fi
 
+if [ -e ~/.dev.sh ]
+then
+  source ~/.dev.sh
+fi
 
 # Liz stuff lol
 # curl -fsSL https://icanhazdadjoke.com | lolcat