Tidy QueryConditionBuilder
SPARQLStore / Tidy

- Rename SparqlConditionBuilder to QueryConditionBuilder
- Move quey mode logic from SMWSparqlStore to QueryEngine
- Move Store::formatDebugOutput to QueryOutputFormatter::formatDebugOutput
- Remove Store::formatDebugOutput dependency from QueryEngine
Merge pull request #403 from SemanticMediaWiki/sparql-tidy

SPARQLStore / Tidy