Revert "Move tests using serialized objects and compression out of experimental"

This reverts commit 391d0c14eb6e62a8a6caa662f1b47381ef9da611.

Conflicts:
	package.xml
Merge pull request #124 from vincentbernat/fix/failing-tests-memcached-049

Revert "Move tests using serialized objects and compression out of experimental
Update package.xml for release