Merge pull request #2420 from albertogg/fix-encoding-issue
Update history to reflect merge of #2420 [ci skip]
Merge pull request #2418 from mathbruyen/collections_permalink
Update history to reflect merge of #2418 [ci skip]
Any assets read in as Pages shall not be rendered or layout'd
Merge pull request #2431 from jekyll/remove-collections-from-layouts
Update history to reflect merge of #2431 [ci skip]
Merge pull request #2395 from rdumont/data-subdirectories
Update history to reflect merge of #2395 [ci skip]
Merge pull request #2389 from kleinfreund/patch-1
Update history to reflect merge of #2389 [ci skip]
Merge pull request #2373 from tschmidt/handle-categories-in-site-config-defaults
Update history to reflect merge of #2373 [ci skip]
Remove dependencies list from README. [ci skip]
We have a gemspec for that.
Relax PATCH level in .travis.yml for ruby versions.

Ruby is now using SEMVER. Relaxing to 2.0 and 2.1 gives them the freedom to
release new patches and for us to take advantage of them without modifying
this file.
https://www.ruby-lang.org/en/news/2013/12/21/semantic-versioning-after-2-1-0/
add collection.label to Document#to_liquid
add label to document section of collections page
Take advantage of date_to_rfc822

Jekyll has a filter built just for this purpose
Spice up site_template feed
Update explanation of the site front-matter defaults section