Adding release notes for 2.2.2
Adding release notes for 2.2.2

apache/archiva,apache/archiva,olamy/archiva,emsouza/archiva,olamy/archiva,apache/archiva,emsouza/archiva,sadlil/archiva,sadlil/archiva,apache/archiva,sadlil/archiva,emsouza/archiva,olamy/archiva,apache/archiva,sadlil/archiva,olamy/archiva,emsouza/archiva,sadlil/archiva