bump version to 2.2.3

Conflicts:

	org.eclipse.ajdt-feature/feature.xml
	org.eclipse.ajdt.core.tests/META-INF/MANIFEST.MF
	org.eclipse.ajdt.core/META-INF/MANIFEST.MF
	org.eclipse.ajdt.doc.user/META-INF/MANIFEST.MF
	org.eclipse.ajdt.examples/META-INF/MANIFEST.MF
	org.eclipse.ajdt.ui.tests/META-INF/MANIFEST.MF
	org.eclipse.ajdt.ui/META-INF/MANIFEST.MF
	org.eclipse.aspectj.feature_tests/feature.xml
	org.eclipse.aspectj/META-INF/MANIFEST.MF
	org.eclipse.contribution.visualiser.tests/META-INF/MANIFEST.MF
	org.eclipse.contribution.visualiser/META-INF/MANIFEST.MF
	org.eclipse.contribution.weaving-feature/feature.xml
	org.eclipse.contribution.weaving.jdt.tests/META-INF/MANIFEST.MF
	org.eclipse.contribution.weaving.jdt/META-INF/MANIFEST.MF
	org.eclipse.contribution.xref-feature/feature.xml
	org.eclipse.contribution.xref.core.tests/META-INF/MANIFEST.MF
	org.eclipse.contribution.xref.core/META-INF/MANIFEST.MF
	org.eclipse.contribution.xref.ui.tests/META-INF/MANIFEST.MF
	org.eclipse.contribution.xref.ui/META-INF/MANIFEST.MF
19 files changed