Merge remote-tracking branch 'origin/master' into v2

# Conflicts:
#	resources/META-INF/plugin.xml

Author: jimkyndemeyer

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 1.7.4 (2019-04-03)
+
+Fixes:
+
+- Fixed "DisposalException: Double release of editor" (#211)
+
 ## 1.7.3 (2019-01-26)
 
 Fixes:

resources/META-INF/plugin.xml

@@ -35,6 +35,7 @@
       <li>2.0.0-alpha-4: Performance improvements, Relay Modern support, MarkDown documentation support, structure view, scratch files, recognize .graphqls, template placeholder support</li>
       <li>2.0.0-alpha-3: graphql-config support</li>
       <li>2.0.0-alpha-2: Language support for GraphQL draft spec as of June 2018. Compatible with Android Studio 3.1 and IntelliJ IDEA Community Edition</li>
+      <li>1.7.4: Fixed "DisposalException: Double release of editor"</li>
       <li>1.7.3: Fixed missing syntax highlighting colors. Set default charset to UTF-8 in query result viewer. Support windows line endings in query result viewer and fixed reformat timing issue.</li>
       <li>1.7.2: Restore whitespace tokens for top level fragment placeholders in Apollo to preserve them during format lines.</li>
       <li>1.7.1: Node 10 Buffer deprecation warning no longer read by plugin as an error in the language service. Two additional minor bug-fixes.</li>