solution for issue #87
changed History's buttons size, added preview scroll animation
added tempalte extension to navigation.html
added new page to open banner
updated templates with new changes
updated manifest and added logical code for new page
added built pages
renamed Help js file, droped banner '_blank' target
dropped 'new' in Help pages' title
removed server help page from 'new' dropdown
added language to the server help page
built applications
Merge branch 'fullvlad-iss87'