This makes memory management more simple, as not explicit deletion
is necessary.
A rather large commit, because changing QVector<> to std::vector<>
is propagated up the call chain.
Adds a new range_contains() helper function for collection
types such as std::vector<>. I didn't want to call it
contains(), since we already have a contains function
for strings and let's keep argument overloading simple.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
fc725d0803