Updated for links
More udpates for changeable and observable
#utime is now split to #modification_time= and #access_time=
Don't need these anymore
Note for updating IO and Enumerable to FileSystem
Got rid of file_system_controller
Renamed APIBase to BaseMethods
Renamed APIStat to StatMethods
Extracted out adapter stat methods to separate modules

Also moved old owner= and group= methods to base_methods.rb
Fixed copy bug