Make search box aware of PRP/name

[jengelh]

Migrated from https://bugzilla.opensuse.org/show_bug.cgi?id=640387

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I know the PRP and name of a package (e.g. Base:System/findutils). Entering that into the search box on build.opensuse.org (next to the "Watchlist" icon) leads to an empty search result however.

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If the search box text exactly matches a PRP/package, jump right to it. (E.g. HTTP redirect to /package/show/Base:System/findutils).

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Entering the URI directly; this however depends on knowing the exact route.