Auto-anchor attribute regexes, document _validTags
FIX: Use lang- prefixes for HLJS; add nohighlight for ...

text; use a proper whiteListTag() call.

Old posts are not affected - no global rebake is necessary.
Clean up validateAttribute() function

Remove code duplication
FEATURE: Allow explicit rel="nofollow" on links
Fix JSHint
Fix data-* behavior (failure to understand own docs)
Update Markdown tests
Add emoji pl_PL localization
Remove href attribute from tab link to prevent duplicate event on enter.

Because Discourse doesn't preventDefault on links with an href of "#"
this tab-able link was firing a click event when enter was pressed. This
had the unfortunate side effect of breaking the history, making routing
and navigation unreliable.
css tweak - expanding some room for zh_CN
some possible improvements to build times

- use our new infrastructure based on LXC and EC2
- enable caching for bundler
- use schema:load (best practice)
- use --deployment (best practice when a Gemfile.lock is around)
make the env vars global
looks like db:migrate is required
Merge pull request #2951 from joshk/patch-1

some possible improvements to build times
Include perf improvements in release notes
Add ability to specify 'from' and 'to' tags in rake task
Merge pull request #2953 from mcwumbly/add-perf-to-release-notes

Include perf improvements in release notes
update specs to remove deprecation warnings
Merge pull request #2954 from mcwumbly/rspec-deprecations

update specs to remove deprecation warnings
FEATURE: ?include_raw parameter for /t/id/posts.json

include_raw is not added for the wordpress view because it uses the
BasicPostSerializer, and is not a one-line change.

This is the only use of the TopicViewPostsSerializer class, and the
previous change covered the only use of the TopicViewSerializer class.
No other locations include the PostStreamSerializerMixin. Therefore,
this feature is most likely complete.
Merge pull request #2955 from riking/include_raw_2

FEATURE: ?include_raw parameter for /t/id/posts.json