Bundler 1.4.0.pre.1, set parallel install to 2
git fixes sin Bundler 1.4.0.pre.2
need to invalidate the CloudFront cache first, default to S3 for now
instrument bundler to stdout
try -j4
fix sqlite3 error detection for bundler 1.4.0
set the buildpack version to branch name
bundler 1.4.0.rc.1
update to 1.5.1