v3.2.0: PHP 7.0+ and bugfixes

This release contains the following changes:

[CHANGE] Updated class selector for use under PHP 7.0 and later
[BUGFIX] Column-count "off" for CSV output when taxes are included.
[BUGFIX] Manufacturer filter was not being honored
[CHANGE] Applied PSR-2 styling to the various modules.
[BUGFIX] Correct year display for "Last Year" selection.