[NewAdmin BO] Configuration of simple form to use it with bootstrap
[NewAdmin BO] icons in election form
[NewAdmin BO] Country column in election index
[NewAdmin BO] Tags resources in rouing file
[NewAdmin BO] Add Tags in layout navbar
[NewAdmin BO] Add basic tag management and search
[NewAdmin BO] Remove separate tags management
Gem: pry-rails to development group
Gem: Underscore to add some JS utility functions
[NewAdmin BO] show action on elections to see and search among its tags