added spark library file
removed unused introspection functions
fixed summary bug in EncodingListStorage
required to call load_default_memory explicitly
removed unused class StrDictStorage
removed unused function _load_module_from_library
minor refactoring
added some comments about plug in support for memory
created summary_from_file functions
using iclassesdict for DirStorage
added missing load_memory
storing formatlist in GlobalConfig
removed unused code
added support for multiple handlers for the same extension
import to the top level
fixed about section
refactored Indexer code
code size reduction
refactoring
fixed typo