Merge branch 'hotfix-1.0.2'
fix(xenperf): fix a core assignation problem for node-related events

Before, for node-related problem, when scopenode_mask was filled, the
integers used for setting the mask were let as integer instead of
long integers, so wrong core were assigned when #core > 31.
Now xenperf use long integers.
Merge branch 'hotfix-1.0.4' into xenperf