Add 2018.3 to build matrix

Author: cedricziel

.travis.yml

@@ -22,6 +22,7 @@ before_install:
 - "export ORG_GRADLE_PROJECT_annotationPluginVersion=${ANNOTATION_PLUGIN_VERSION}"
 
 env:
+  - PHPSTORM_ENV="skip incomplete" IDEA_VERSION="IU-183.2153.8" PHP_PLUGIN_VERSION="183.2153.44" TWIG_PLUGIN_VERSION="183.2153.44" TOOLBOX_PLUGIN_VERSION="0.4.6" ANNOTATION_PLUGIN_VERSION="5.3"
   - PHPSTORM_ENV="skip incomplete" IDEA_VERSION="IU-2018.2" PHP_PLUGIN_VERSION="182.3684.42" TWIG_PLUGIN_VERSION="182.3458.35" TOOLBOX_PLUGIN_VERSION="0.4.6" ANNOTATION_PLUGIN_VERSION="5.3"
   - PHPSTORM_ENV="skip incomplete" IDEA_VERSION="IU-2018.1" PHP_PLUGIN_VERSION="181.4203.565" TWIG_PLUGIN_VERSION="181.3741.23" TOOLBOX_PLUGIN_VERSION="0.4.6" ANNOTATION_PLUGIN_VERSION="5.3"
   - PHPSTORM_ENV="skip incomplete" IDEA_VERSION="IU-2017.3.5" PHP_PLUGIN_VERSION="173.4301.34" TWIG_PLUGIN_VERSION="173.4301.7" TOOLBOX_PLUGIN_VERSION="0.4.6" ANNOTATION_PLUGIN_VERSION="5.2.1"

gradle.properties

@@ -1,3 +1,9 @@
+#ideaVersion = IU-183.2153.8
+#phpPluginVersion = 183.2153.44
+#twigPluginVersion = 183.2153.44
+#toolboxPluginVersion = 0.4.6
+#annotationPluginVersion = 5.3
+
 ideaVersion = IU-2018.2
 phpPluginVersion = 182.3684.42
 twigPluginVersion = 182.3458.35