prepare for 0.3.0 release

Author: blerer

build.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project basedir="." default="build" name="jamm" xmlns:ivy="antlib:org.apache.ivy.ant">
   <property name="debuglevel" value="source,lines,vars"/>
-  <property name="version" value="0.3.0-SNAPSHOT"/>
+  <property name="version" value="0.3.0"/>
 
   <property name="basedir" value="."/>
   <property name="build.src" value="${basedir}/src"/>

pom.xml

@@ -11,7 +11,7 @@
   <groupId>com.github.jbellis</groupId>
   <artifactId>jamm</artifactId>
   <packaging>jar</packaging>
-  <version>0.3.0-SNAPSHOT</version>
+  <version>0.3.0</version>
   <name>Java Agent for Memory Measurements</name>
   <description>
     Jamm provides MemoryMeter, a java agent to measure actual object memory use including JVM overhead.