Merge branch 'master' into prepare-3.1.0-release

Author: Antonio Mansilla

.travis.yml

@@ -23,6 +23,10 @@ before_install:
   # disable default memory limit
   - export INI=~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - echo memory_limit = -1 >> $INI
+  - echo "extension = apcu.so" >> $INI
+  - pear config-set preferred_state beta
+  - pecl channel-update pecl.php.net
+  - yes | pecl install imagick
 
 install:
   - travis_retry composer install $COMPOSER_OPTS

src/Resources/config/assets.yml

@@ -0,0 +1 @@
+@import "./web/bundles/flagbittableattribute/less/tableattribute.less";