Changelog:
===========
* Improved :func:'autofit' algorithm to account for the additional width of
autofilter and table dropdowns.
* Improved :func:'autofit' take user defined column widths into account.
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
