use vavr 0.9.2

Author: ruslansennov

pom.xml

@@ -40,7 +40,7 @@
         <assertj.core.version>3.5.2</assertj.core.version>
         <eclipse.lifecycle.mapping.version>1.0.0</eclipse.lifecycle.mapping.version>
         <java.version>1.8</java.version>
-        <vavr.version>0.9.2-SNAPSHOT</vavr.version>
+        <vavr.version>0.9.2</vavr.version>
         <junit.version>4.12</junit.version>
         <gwt.version>2.8.0</gwt.version>
         <maven.bundle.version>3.2.0</maven.bundle.version>