Don't show remove button on new user
Small improvements to #entries tag

* Support passing bucket, eg. `bucket="articles"`. TODO: Pass multiple buckets with |, negate with -, etc.
* Supports passing a where clause. TODO: Create a custom syntax that allows them to use variables here
Nix .intro and use .lead instead (built into Bootstrap)
Update Bootstrap and GSAP
Use new Express 4 format for bodyParser
Set tab size to 2 in editor
Merge branch 'master' of https://github.com/asm-products/buckets