Tomáš Babiak authored May 21, 2012 and Alexandre Duret-Lutz committed May 21, 2012

* src/BuchiAutomaton.h, src/BuchiAutomaton.cc
(BuchiState::isDeterministic, BuchiAutomaton::isDeterministic,
BuchiAutomaton::nondeterminismIndex): New methods.
* src/TestOperations.cc (generateBuchiAutomaton): Collect
nondeterminism indices, and count deterministic automata.
* src/TestStatistics.cc, src/TestStatistics.h: Add storage
for these statistics.
* src/StatDisplay.cc (printBuchiAutomatonStats,
printCollectiveStats): Display these statistics.