Prepare project for release v0.3.0-PRERELEASE.

Author: Naoghuman

pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.naoghuman</groupId>
     <artifactId>lib-i18n</artifactId>
-    <version>0.3.0-SNAPSHOT</version> <!-- -PRERELEASE -SNAPSHOT -->
+    <version>0.3.0-PRERELEASE</version> <!-- -PRERELEASE -SNAPSHOT -->
     <packaging>jar</packaging>
     <name>Lib-I18N</name>
     <inceptionYear>2018</inceptionYear>