removed features tests
removed initializers
removed secrets from repo
removed unused scripts
removed unused method
moved work with secrets to ENV variables
simplified authentications
refactored with with contributions
github route for auth
remove redis from dependencies
updated readme
removed redis as caching
updated rails_admin config
remove no more used permission: clean_cache
removed history model
removed using of mediawiki for pages

save internal_links for page
new backlinks through internal_links
* disabled history in view
removed useless parts of ability class
better work with used_links
commented tracking the page
fixing renaming