Added Tag selector in News widget
Modified news designer to use tag filter directive
Hide taxon-fitler when the option is not selected
Small fix in news widget filtering
flat-selector is renamed to list-selector
content-selector is changed to news-selector in NewsWidget
Merge branch 'TagSelector' of https://github.com/Sitefinity/feather-widgets
Fixed references in Feather widget proj
Fixed Unit tests according to the changes in the taxon filter