Release 0.3.0.

Author: Wiktor Gromniak

README.md

@@ -8,7 +8,7 @@ Include to your project as a Maven dependency:
 <dependency>
     <groupId>net.quedex</groupId>
     <artifactId>java-api</artifactId>
-    <version>0.1</version>
+    <version>0.3.0</version>
 </dependency>
 
 ```

build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'maven'
 apply plugin: 'signing'
 
 group 'net.quedex'
-version '0.3.0-SNAPSHOT'
+version '0.3.0'
 ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
 
 ext {