Improve searching user interface

[JeremyRuston]

The current search user interface can be very slow when returning large numbers of matches. It can also be difficult to see the highlighted search terms when they occur in the middle of a long tiddler.

The proposal is to add a search results popup using the new ListView? control that:

• Is dynamically updated as the user types
• Shows titles of matching tiddlers with short excerpt highlighting the first match
  • Ideally, the excerpt will be wikified
• Offers an option to open one, some or all of the matching tiddlers
• Shows title matches first, then tag matches, then author matches, then content matches

At the same time, it would be desirable to fix some other search issues:

• Multi-word search terms should match separately (ie, "James Kirk" should find "James Tiberius Kirk")
• Add options to restrict the search to titles, metadata or content
  • This allows something like the functionality of EricShulman?'s GotoPlugin? to be accomplished

Various plugins already offer some of these enhanced features:

http://www.tiddlywiki.org/wiki/Enhanced_Search

[FND]

Milestone set to v2.3.1 as per  roadmap.

[FND]

related: #736

[MartinBudden]

Milestone 2.6.2 deleted

[FND]

This is  important, so it should not be deferred any longer.

[FND]

current milestone 2.7 will be renamed to 2.6.2 - thus bumping what's eventually gonna be the actual 2.7

[MartinBudden]

The current search is adequate for many TiddlyWikis?. Enhanced search plugins are available for those who want extra functionality and/or a different user interface.

Enhancing search in the core means that those who don't use the enhanced search will have to pay the cost of a bigger core.