Combine Search Results and Advanced Search

As part of improved search, we want an improved UX by combining the fielded search of "advanced search" into a drill-down style search results page.

Specification
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- Pressing [Enter] in LiveSearch (or clicking Show More) leads to the search results page.

- Improve the results by showing the "contextual summary" of each search result, that is, the snippet around the match with the (stemmed) match show in bold.

- Consider providing alternative formats for different kinds of results. For example, a Profile in the results might show the picture, plus information about the profile (organization, office, department, phone extension.) Perhaps in a format like Feeds.

- Make a left column, like Google has in its results, that let you "drill down" on "facets". Use the same "facets" available on advanced search:

  * Something related to Type
  * Something related to modification date (can be more Google-like to be "Past 24 hours", "Past Week", etc.)
  * Not quite sure what to do on free-text stuff (tags, author)...perhaps we need an autocomplete widget
  * Make these things *simple*, just simple links like Google, not form widgets

- At the top, allow re-specifying the searchterm

Questions
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- Can we get rid of the "advanced search" link up by the LiveSearch box? Sure would be nice.

- We currently cause confusion regarding pressing Enter in LiveSearch to get to the full search results. That is, we change it from a showing results of a prefix search in LiveSearch, to doing a full-word search in search results. Should we address this? There are pros and cons to both approaches.

- Chris, I *think* pgtextindex (or some user-contributed example) showed how you could do a "Did you mean" spellchecking on terms. I believe OSI would consider that valuable, if it is feasible (cheap, low risk) to provide it. At http://www.postgresql.org/docs/current/static/pgtrgm.html there seems to be something in the ballpark. (In fact, that module has all kinds of interesting possibilities.)

- Chris, feel free to brainstorm any other ideas. E.g. a link to the community something was in, or some concept for "Similar".