ccdproc 2.0

This is the first release of ccdproc that is Python 3 only!

New and improved

The ImageFileCollection for working with sets of images has several new features:

• Construct a collection from an explicit list of files.
• Filter files using regular expression matching.
• Create a new collection by filtering an existing collection.

Other new features include:

• Weights in image combination can be a 1D array.
• Reduced memory in image combination.
• Many fewer files open during image combination when using memory mapping and breaking the image stack into chunks.
• Better performance and a wider array of compression types for ImageFileCollection.
• Better handling of constructing error array when some image value are negative.

In addition, several bugs were fixed.

See the changelog for more details.