MySQL OCF RA to not chose all-zero-uuid as possible masters
MySQL OCF RA to not chose all-zero-uuid as possible masters

Select possible masters from nodes with non zero uuids and fall back
to zero ids if only no more meaningfull ids were found.

For example, if 4 nodes have 00000000-0000-0000-0000-000000000000,
and 5th has ef3c5d28-1045-11e6-941c-82b1df28ba4c, chose the latter
and ignore a majority of zero uuids. Otherwise, the possible master
may not be always found as crm_simulate may return negative score
for all candidates with zero ids.

Related-bug: #1576244

Change-Id: I0a5108cb6ceb6ef869d89f4993897390c8f4c749
Signed-off-by: Bogdan Dobrelya <0b23cd1e586d5f091fecb3391314c2b9ec1fd641@mirantis.com>

stackforge/fuel-library,stackforge/fuel-library,stackforge/fuel-library,stackforge/fuel-library