Prepare for release: Add information about 4.5.0 release to the RELEASE-NOTES

git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx4/features/trunk@1458207 13f79535-47bb-0310-9956-ffa450edef68
Prepare for release: Add information about 4.5.1 release to the RELEASE-NOTES

git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx4/features/trunk@1458208 13f79535-47bb-0310-9956-ffa450edef68