Verify the image's secure hash.
New helper function to get the image checksum.
Quick doc update.
Added new exception for errors on checksum
Added a base class for extractor exceptions.
Added support for LSB_INTEGER SAMPLE_TYPE.
* Should check that it works without additional
modifcation. We wouldn't want to look at
inverted images or anything like that.
Some comments cleaned. They should be added to the
Need to add a new option for ascii armor.
Probably don't need to flush the buffer, should
happen automatically on exit, right?
Oops, forgot to remove print statement.
Fix for issue 3.
Adding new pds-image tool.
Fixed a bug in the show_labels option.
Commenting some log messages (source.name may not exist).
Tidying up a bit
Adding converter tool