fix segfault and FA -> RE -> FA (algeb, thomps)

alib2algo/src/automaton/AutomatonPropertiesFSM.cpp

@@ -141,7 +141,7 @@ std::set<automaton::State> AutomatonPropertiesFSM::epsilonClosure( automaton::Ep
 	queue.push( q );
 	while( ! queue.empty( ) )
 	{
-		const automaton::State & p = queue.front( );
+		automaton::State p = queue.front( );
 		queue.pop( );
 		visited[ p ] = true;
 		closure.insert( p );

tests.aconversion.sh

@@ -165,7 +165,7 @@ function runTest {
 # FA -> RE -> FA
 # covers: FA -> RE (Brzozowski algebraic, elimination), RE -> FA (Brzozowski derivation, Thompson, Glushkov)
 # runTest "./aconversion -t RE -a algebraic | ./aconversion -t FA -a brzozowski"
-# runTest "./aconversion -t RE -a algebraic | ./aconversion -t FA -a thompson"
+runTest "./aconversions2 -t RE -a algebraic | ./aconversions2 -t FA -a thompson"
 runTest "./aconversions2 -t RE -a algebraic | ./aconversions2 -t FA -a glushkov "
 #runTest "./aconversion -t RE -a elimination | ./aconversion -t FA -a brzozowski"
 #runTest "./aconversion -t RE -a elimination | ./aconversion -t FA -a thompson"