add open method on local readers
fix boto file handle offset - update position after read
Merge remote-tracking branch 'upstream/custom-rdds' into custom-rdds-tifseries
add initial multitif module
add docstrings in multitif.py
attempt to wire together multitif series loader
add factory to generate Dimensions from numpy shape tuple; add str and repr in Dimensions
cast tuples to Dimensions in series init; check for noniterable types beyond int in series select
remove dims and datatype args from tif loading, will be read from data instead
fixes to tif loading; always read dims and datatype from file rather than allow passed argument
reread after less than size bytes read in multitif
return s3 scheme URI from list files in boto s3 reader
work on indexing for series load and save from multitif images
Merge remote-tracking branch 'upstream/custom-rdds' into custom-rdds
Merge pull request #36 from industrial-sloth/custom-rdds

Custom rdds: multipage tif reader