Add order by update date (last commit date) or downloads after text search

[livimonte]

There are many deprecated packages. It's hard to find updated and relevant packages. Many, dont have updates for two or more years. Order results after text search by latest updateds or downloads will help A LOT to select relevant packages.

A depreciated flag and/or last meteor compatibility version would also be great, packages as CollectionFS that were widely used before, has no more relevance to new projects. And now with node 4 and mongo 3.2 many packages must have huge updates and many will be deprecated.

Even with the adoption of NPM to install packages, I still believe that the atmosphere has long-standing use in Meteor community, even by the search of npm is really bad. She would need to have at least one flag "Meteor" and some filters to work well.