Database: Table\SelectionFactory::create() renamed to Nette\Database\SelectionFactory::table(), to be consistent with Connection::table()
Database: added SelectionFactory::getDatabaseReflection() [Closes #931]
tests: removed dependency on Connection::table()
NetteExtension: added service Nette\Database\SelectionFactory
Merge pull request #1073 from nette/selection-factory

SelectionFactory: using and renaming