1.16 Highlight keywords

Highlight matched keywords upon filtering.

Property	Type	Description	Remarks	Example
highlight_keywords	boolean	if set true, matched keywords will be highlighted upon filtering (default - false)		var tfConfig = { highlight_keywords: true }
highlight_css_class	string	defines the css class for the highlighted keyword (default 'keyword')		var tfConfig = { highlight_css_class: 'myClass' }