moved meta_basedir from Attribute to Module and Task
moved meta_chdir from Attribute to Module and Task
moved meta_fallback from Attribute to Module and Task
moved meta_cache from Attribute to Module and Var
removed meta_info
moved meta_signature from Attribute to Task
min
min
update docs
added meta_signature to Var
improve DerivedTask sig
reimp FunctionTask sig
reimp MethodTask sig
moved invoke inspect to Task
remove work task from docstrings
fixed tests
min
improve Module.info
fixed tests
removed meta_signature, meta_info from NullModule