CA-144708: Optimal server option doesn't seem to pass the Ronseal test
Based on the discussion of CA-144708, when error happens or the Current Server is listed and disabled
in the recommendation host list, there is no rating score and star actually, so it is good to hide the
zero star to avoid confusing.

This fix hides the zero star indication on XenCenter GUI.

Signed-off-by: Zheng Chai <zheng.chai@citrix.com>
Merge pull request #221 from Zhengchai/CA-144708

CA-144708: Optimal server option doesn't seem to pass the Ronseal test
CA-147167: Null reference exception in GeneralTabPage
Merge pull request #224 from GaborApatiNagy/CA-147167_fixed

CA-147167: Null reference exception in GeneralTabPage
CA-147368: Increase DEFAULT_NUM_VBDS_ALLOWED to 16

Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Merge pull request #227 from GaborApatiNagy/CA-147368

CA-147368: Increase DEFAULT_NUM_VBDS_ALLOWED to 16
Merge pull request #229 from xenserver/xs64bit

Xs64bit