Add timeout parameter to increase for long time running sql imports

Signed-off-by: refnode <refnode@gmail.com>
Add documentation for new mysql::db "import_timeout" parameter

Signed-off-by: refnode <refnode@gmail.com>
Update PE and OS compatibility info in metadata

Now compatible with PE 3.4 and SLES 10.
Merge pull request #583 from cmurphy/metadata

Update PE and OS compatibility info in metadata
Clean up metadata for new SLES support
Merge pull request #584 from cmurphy/clean_metadata

Clean up metadata for new SLES support
Merge pull request #576 from igalic/timeout

Timeout