Added ability to create system setting "ms2_max_cart_count"
Fixed formatting of dates in category grid
Fixed placeholders in emails subjects
Merge branch 'master' of github.com:bezumkin/miniShop2

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Removed old references to Tickets
Fixed generation of thumbnails in gallery for working with ImageMagick
Fixed link type "Many to many"
Fixed requirement of non-existing permission "update_document" in processors