Set flags to hide wikidata descriptions and full text search option.

Both of these features await some minor refinements before they
are ready for market. In the mean time, we need to push to market
to fix the javascript bridge freezing bug :)

Change-Id: I8e6916208bd59efedb5155357a5e363b1058b159
bump version to 4.0.6 / 4.0.6.0

Change-Id: I85a00dee39e39f34f5a75ba56ba7da46966fbb83