Changed version back to 1.0-SNAPSHOT
Fixed bug in author debug view.

the qw:formatNodeKey(.) XPath function wasn't handling multiple
node instances correctly.
Improved logging of candidate session explosions
Fix to logic in TestPlan regarding node indices

There was a logic mismatch in the meaning of "global index", leading
to wrong behaviour in some ordered/selection questions. Logic now fixed.
Fixed regression in test item feedback rendering

An error was introduced in the XPath expression for determining
whether item feedback should be fixed. This is now fixed by checking
against 1.0-M4a