Merge pull request #64 from rainemak/mParentIdFix

Call onInitialzed when component completed in case mozcontext initialize...
Merge pull request #65 from rainemak/onWindowCloseRequested

[qtmozembed] Add OnWindowCloseRequested handler
Merge pull request #66 from rainemak/scrollUpdate

Scroll update
[qtmozembed] Add read and write parentId property

When multiple QuickMozView are created this it is good that
parentId can be read so that parent-child window relationships
can checked with this and uniqueID().