Search result order needs improvement

[guoyunhe]

For example, search "firefox":

The actual MozillaFirefox package is in 4th place. The first one is a user's package. The second one is from development project. The third one is unavailable in Tumbleweed and Leap 15.

I think search result order should calculate these factors, from top to bottom:

1. Whether the package is in Factory/Tumbleweed. Official package > experimental package > community package.
2. Whether the package is an application with AppStream data. Application > library.
3. Package name relevance.

[guoyunhe]

In PR #296

[agraul]

@guoyunhe do you plan on improving the search result order any more or can I close this? By the way, if you write

Fixes #273

in the PR description, the issue gets automatically closed when the PR gets merged 😉

[guoyunhe]

Thanks, I think this issue can be closed now.