0.2.8 - Use pyreadstat as optional engine for reading sav files

Add the option "engine" to sav reading (dataset.read_spss). This means we can use the pyreadstat to read SPSS files and meta data.

Pros:

• Faster
• More robust (won't fail under certain circumstances savReaderWriter fails)
• Easier to use on multiple platforms

Cons:

• Doesn't support SPSS sets (like multiple choice questions) so users will have to create them afterwards (only one line of code)

Confirmit reader, crosstab improvement and python 3 fix

This release adds three improvements to Quantipy3:

• The Confirmit API reader has improved.
• The crosstab method now supports an option to define what base is returned (weighted or unweighted or both)
• A minor fix for python3 compatability.

Version 0.2.5

Bug fix for reading SPSS files that define multi choice variables in SPSS meta data. Quantipy can now read these without failing.

Version 0.2.4 - improved crosstab method

Crosstab method now allows nested variables, sig-diffs and showing counts, percentages and base in the same result dataframe.

Version 0.2.3 - confirmit reader

This release adds the capability to read native Confirmit data.

Version 0.2.2

First release with automated workflow. Build works for Python 3.5, 3.6, 3.7. Scipy and/or numpy dependencies need to be updated in order to support Python 3.8.