Merge pull request #26 from pauldu/master

Implement proper reference counting in the NETIO interface, and
Cope with GranterPermitAccess() failing

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Fix stupid typo (and add an error warning)

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Remove some debug spew on grant table allocation failures

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Re-try AuxKlibQueryModuleInformation() if buffer was too small

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>