added new students tenants menu
Merge branch 'master' of github.com:maxcobmara/catechumen

Pull Merge
Merge pull request #22 from Nurhashimah/master

fix student info - search, sort programme & group_by intake + ethic listing
set versions in config/environment.rb
post rake
gem fixes
update readme
Fixes - 1) student index, form & kin (validation added) - 2) staff - show (position not exist)