Manifest.binary.in did not include itself
Setup always creates package directory in source dir
Adding more explicit access to scale factor
Pushing scaled visibility up in the call stack
parameters are set using scaled visibilities
Simplifies guessing of parameters
Remove file left over from 1e8b05b397d324192657b89f64697228f0814e04
:name_badge: Changing Measurement to Sensing
Expand types of objects that can function as visibilities

Used to be only dataframes. Should now work with sequences, dictionaries,
homogeneous numpy arrays and correctly names numpy records.
Remove dovirtualenv option since we don't use virtualenvs anymore
:lipstick: and :bug:s in error messages
:lipstick: trailing whitespace
:lipstick: Read long_description into variable rather than inline call
Adds casa task

Installation is done only if run from casapy.
Similarly, the task is imported into casa only if run from casapy.
The import is done when importing purify itself.
:lipstick: Ignoring casapy log files
Refactored casa interface to be more functional

Can now iterate over casa data, before and after purification.
These iterators are used by the task to create images.
Cython functions are made to check for exceptions
Only ouputing real part of the image
Add option to iterate over data without scaling u and v

This is more for debugging purposes at this juncture.
add_dependencies does not work with files

It works with top-level targets. However, the dependency we were trying to add
should already exist.