Allow update-beef script to update dependencies

update-beef

@@ -4,6 +4,16 @@
 # Browser Exploitation Framework (BeEF) - http://beefproject.com
 # See the file 'doc/COPYING' for copying permission
 #
+set -euo pipefail
+IFS=$'\n\t'
 
-echo Updating...
-git pull
+info()  { echo -e "\\033[1;36m[INFO]\\033[0m  $*"; }
+
+info 'Updating BeEF from GitHub repository...'
+git pull
+
+info 'Updating dependencies...'
+if [ -f Gemfile.lock ]; then
+  rm Gemfile.lock
+fi
+bundle install