Deleted duplicated data of ptje. It was added ages ago to simplify debugging. It's not needed.
This was the reason of most of changes in test_index.py. It was needed to avoid check ptje as last item in result.
The API of easy_index, compressed_index and sqlite_index are not fully compatible. I renamed search to partial_search, and leave just a void function on search.
I changed the total max number of results provided by sqlite_index. In the GUI, there are a link that gives to the user 500 results by page, so that was the new limit.
Some comments
Enjoy! #310