do not display territory statistics while scoring mode is enabled (#18)
set additive knowledge type after initial "uct_max_memory" (#187)

fixes crash due to insufficient memory on startup on devices with 512 MB
of memory. read class docs of SetAdditiveKnowledgeTypeCommand for
details.
fix bug in UserDefaultsUpdater
fix character case in string „Start marking as seki“
fix Xcode schemes to build unit test target together with main target
use pattern-based additive knowledge only on devices with >512 MB memory (closes #187)
reduce maximum zoom scale to 2.0 for iPad and 2.5 for iPhone (fixes #202)