Refactoring done (was: Strigi refactor)

[Jos van den Oever]

What changed:

- namespace jstreams was renamed to Strigi for all classes not in
strigi/src/streams
  The classes in there must remain compatible with CLucene which uses
the same headers.

- libstreamindexer became libstreamanalyzer

- Indexable became AnalysisResult
- StreamIndexer became StreamAnalyzer
- IndexerConfiguration became AnalyzerConfiguration
  The new names of these classes reflects the wider function that the
classes have gotten.

kdebase, kdelibs and kdegraphics have been updated to work with the api changes.

Cheers,
Jos