add .bundle to gitignore
add .bundle to gitignore

pconrad-webapps/jekyll-stub,pconrad-webapps/jekyll-stub,pconrad-webapps/jekyll-stub,pconrad-webapps/pconrad-webapps.github.io,pconrad-webapps/pconrad-webapps.github.io,pconrad-webapps/pconrad-webapps.github.io