Product filter works with Joomla 3 and Virtuemart 2.6.х-3.0.x
[v3.0.7] - fixed installation error in Joomla 3.7 (Using $this when not in object context)
[v3.0.6] - fixed subcategory work
[v3.0.6] - fixed color and language issue after ajax update
[v3.0.6] - fixed a lot of small bugs
[v3.0.4] - fixed search by "integer" type of custom fields
[v3.0.3] - fixed error of delete values while editing of a custom field
[v3.0.2] - fixed broken module editing page in some combination of system settings
[v3.0.1] - fixed error which display "Array" on left top bottom of the site
[v3.0.0] - works with Joomla 3 and Virtuemart 3.0.x
