Some small bugs repaired
Some small bugs repaired

svn path=/trunk/StrategoXT/; revision=78

Apanatshka/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,lichtemo/strategoxt,metaborg/strategoxt,metaborg/strategoxt,metaborg/strategoxt,Apanatshka/strategoxt,metaborg/strategoxt,metaborg/strategoxt,Apanatshka/strategoxt,lichtemo/strategoxt,lichtemo/strategoxt