Updated the changelog for 3.0.2

documentation/src/main/resources/changelog.txt

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+-------------------------------------------
+Changes from CloudSim 3.0 to CloudSim 3.0.2
+-------------------------------------------
+
+WHAT'S NEW
+----------
+
+This is a bug fix release. The following updates have been made:
+
+- Fixed Issue 32: a problem with the ant classpath declaration
+- Fixed Issue 37: recalculating MIPS in PowerVmAllocationPolicyMigrationAbstract.findHostForVm()
+- Updated the references to the CCPE paper
+
+
+-------------------------------------------
 Changes from CloudSim 3.0 to CloudSim 3.0.1
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+-------------------------------------------
 
 WHAT'S NEW
 ----------
@@ -203,4 +217,3 @@ Below there is a list of CloudSim's new features. Please, refer to Javadoc and e
 * Support for simulation of Federation of Data centers (new classes FederatedDatacenter, CloudCoordinator, and Sensor);
 
 * Support for modeling of energy-aware cloud computing.
-