Change the platform version to 2.7.0

Author: wikumChamith

pom.xml

@@ -37,7 +37,7 @@
     </modules>
 
     <properties>
-        <openmrsPlatformVersion>2.7.3</openmrsPlatformVersion>
+        <openmrsPlatformVersion>2.7.0</openmrsPlatformVersion>
         <handlebarsVersion>1.3.1</handlebarsVersion>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>