[ALL] Drop support for platforms prior to 2020.2

Author: cedricziel

.travis.yml

@@ -17,8 +17,6 @@ cache:
 
 matrix:
   include:
-  - env: IDEA_VERSION="IU-2019.3.4" PHP_PLUGIN_VERSION="193.6911.15" PSI_VIEWER_PLUGIN_VERSION="193-SNAPSHOT" GRAMMAR_KIT_PLUGIN_VERSION="2019.3" SINCE_BUILD="193" UNTIL_BUILD="193.*"
-  - env: IDEA_VERSION="IU-2020.1.1" PHP_PLUGIN_VERSION="201.7223.91" PSI_VIEWER_PLUGIN_VERSION="201-SNAPSHOT" GRAMMAR_KIT_PLUGIN_VERSION="2020.1" SINCE_BUILD="201" UNTIL_BUILD="201.*"
   - env: IDEA_VERSION="IU-2020.2" PHP_PLUGIN_VERSION="202.6397.94" PSI_VIEWER_PLUGIN_VERSION="202-SNAPSHOT" GRAMMAR_KIT_PLUGIN_VERSION="2020.2.1" SINCE_BUILD="202" UNTIL_BUILD="202.*"
 
 before_install:

typo3-cms/src/main/resources/META-INF/plugin.xml

@@ -185,6 +185,7 @@
 
         <!-- FlexForms -->
         <completion.contributor language="XML"
+                                implementationClass="com.cedricziel.idea.typo3.flexform.FlexFormCompletionContributionProvider"/>
     </extensions>
 
     <actions>