Small fix to return proper value recevied from parent process in isClose properties.
This fixes SESession property. SEChannel property returns wrong value if SESession is already closed.

Change-Id: Ie2a951a664123a4610cf8e3ec16aff052d8cfb09
Merge pull request #16 from tauzen/isclosed_fix

Small fix to return proper value recevied from parent process in isClosed properties.