This was not necessary when searching in only one zim file as `url` was
enough to get the article (and so the content).
If we want to search in several zim in the same time, we need a way to get
the content directly.
libzim only know how to read embedded full text index in a zim file.
This is nice as we want to embedded the full text index in zim file and
not have separated full text index.
However, we still have some zim+separated index we have to read.
So we have to support the search in separated index for a while.
We don't need to generate a vector of result when we do a search.
We better to just keep the handle to the current MSetIterator and
generate the wanted values when needed.
There is no more integrated build of dependencies in the build system.
Dependencies are discovered using pkg-config except for ctpp2 where there
is no pkg-config file.
Matthieu Gautier
Matthieu Gautier