Added case_sensitive_completion option to extension

[jlstevens]

This fixes a bug with recent IPython versions, namely the fact that completions are listed in a case-insensitive order (ignoring both the default behavior of dir and __dir__ as well as the semantic importance of case in Python identifiers).

As this monkey patches a particular function in IPython, the default of this parameter is False but you can enable it by adding a ~/.holoviews.rc:

import holoviews as hv
hv.extension.case_sensitive_completion=True

This is highly recommended as it allows you to index into Layout and Overlayas originally intended. Hopefully, this fix will make it's way into the next IPython release.

[jbednar]

Looks good to me.

[jlstevens]

I've improved handling of the holoviews.rc file. You can now stick a 'holoviews.rc' at the top-level of the git repo and it will be used, instead of having to stick the file in the home directory (or using an environment variable).

[jlstevens]

@jbednar @philippjfr I am open to suggestions for a better name than case_sensitive_completion. Otherwise ready for review.

[jbednar]

Looks good to me. Ready to merge?

[philippjfr]

Will merge once tests pass.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.