Adding documentation for installing HHVM with nginx on Linux
Fix DataQuery::applyRelation for multiple relations of the same class (fixes #3546)
Merge pull request #3547 from kinglozzer/pulls/3546-apply-relation

Fix DataQuery::applyRelation for multiple relations of the same class (fixes #3546)
Merge pull request #3539 from halkyon/hhvm_nginx_docs2

Adding documentation for installing HHVM with nginx on Linux
FIX: Tag-less cache backends error on flush
Update versioning.md

Removed parent::onAfterPublish(); because Page parents does not implement it. The old code generate this error:

Error at framework/core/Object.php line 761: Uncaught Exception: Object->__call(): the method 'onafterpublish' does not exist on 'MyPage' (http://ssdev-master.zk/admin/pages/edit/EditForm)
Update fixtures.md

syntax error
Recompiled CSS with compass 1.0

Minor syntactical changes, like alphabetical ordering of filters, uppercasing of hex colours. See http://compass-style.org/blog/2014/08/15/omg-compass-1-0/.
Shouldn't include any user-visible changes, but helps to avoid confusion with the next person trying to modify the CSS (Luke is currently struggling with that)
Merge pull request #3560 from g4b0/patch-3

Update fixtures.md
Merge pull request #3559 from g4b0/patch-2

Update versioning.md
Merge pull request #3558 from kinglozzer/pulls/tagless-backends-fix

FIX: Tag-less cache backends error on flush
BUG Fix static call to protected instance method
Merge pull request #3568 from tractorcow/pulls/3.1/fix-behat

BUG Fix static call to protected instance method
BUG Upload: File versioning with existing files
reinsert oldFilePath = relativeFilePath in while loop
Merge branch 'pr/3570' into 3.1