don't crash current request on missing mf2 properties. fixes #29
Merge pull request #30 from snarfed/bug-fixes

don't crash current request on missing mf2 properties. fixes #29
ignore local-only bundler dirs, config.yml
development setup instructions and troubleshooting
add libxml-ruby 2.3.3 incompatibility with libxml2 2.9.x
use mf2 u-url property when available. fixes #23

adds a new links.url db column, so @aaronpk, you'll need to run `rake db:migrate` before deploying this.

(incidentally, out of curiosity, any reason for the migrate vs upgrade naming conflict in the Rakefile? :P)
use u-url in notification message if available
Merge pull request #27 from snarfed/docs

development docs, more .gitignore
Merge pull request #28 from snarfed/u-url

use mf2 u-url property when available. fixes #23
add CONTRIBUTING.md