Make tools executable

Change-Id: Ib6cc1510f5f7fdd682c6cb6290c85af90a35ab2a
diff --git a/bin/corpuslist_to_index b/bin/corpuslist_to_index
old mode 100644
new mode 100755
diff --git a/bin/corpuslist_to_korapxml2krill b/bin/corpuslist_to_korapxml2krill
old mode 100644
new mode 100755