Release 0.3.0

Author: kshchepanovskyi

gradle.properties

@@ -1,7 +1,7 @@
 # Available idea versions:
 # https://www.jetbrains.com/intellij-repository/releases
 # https://www.jetbrains.com/intellij-repository/snapshots
-version=0.3.0-SNAPSHOT
+version=0.3.0
 ideaVersion=145.258.11
 # https://intellij-support.jetbrains.com/hc/en-us/articles/206544879-Selecting-the-JDK-version-the-IDE-will-run-under
 # Java 8 is required to run IntelliJ IDEA starting from version 16