CQ7793: added jodatime library

bundles/core/org.eclipse.smarthome.core.persistence/build.properties

@@ -2,7 +2,6 @@ output.. = target/classes/
 bin.includes = META-INF/,\
                .,\
                OSGI-INF/,\
-               OSGI-INF/persistenceextension.xml,\
                lib/joda-time-2.3.jar
 source.. = src/main/java/,\
            src/main/resources/

bundles/model/org.eclipse.smarthome.model.item/.classpath

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
+	<classpathentry kind="src" path="xtend-gen"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>