Fixed some typos (#2695)

* Fix typos

app/controllers/admin/booths_controller.rb

@@ -10,7 +10,7 @@ module Admin
       @booth_export_option = params[:booth_export_option]
       respond_to do |format|
         format.html
-        # Explicity call #to_json to avoid the use of EventSerializer
+        # Explicitly call #to_json to avoid the use of EventSerializer
         format.json { render json: Booth.where(state: :confirmed, program: @program).to_json }
         format.xlsx do
           response.headers['Content-Disposition'] = "attachment; filename=\"#{@file_name}.xlsx\""

app/controllers/admin/events_controller.rb

@@ -24,7 +24,7 @@ module Admin
 
       respond_to do |format|
         format.html
-        # Explicity call #to_json to avoid the use of EventSerializer
+        # Explicitly call #to_json to avoid the use of EventSerializer
         format.json { render json: Event.where(state: :confirmed, program: @program).to_json }
         format.xlsx do
           response.headers['Content-Disposition'] = "attachment; filename=\"#{@file_name}.xlsx\""

app/controllers/admin/tracks_controller.rb

@@ -15,7 +15,7 @@ module Admin
 
       respond_to do |format|
         format.html
-        # Explicity call #to_json to avoid the use of EventSerializer
+        # Explicitly call #to_json to avoid the use of EventSerializer
         format.json { render json: Track.where(state: :confirmed, program: @program).to_json }
         format.xlsx do
           response.headers['Content-Disposition'] = "attachment; filename=\"#{@file_name}.xlsx\""

app/controllers/application_controller.rb

@@ -52,7 +52,7 @@ class ApplicationController < ActionController::Base
     Rails.logger.debug('IChain Record was not Unique!')
     sign_out(current_user)
     redirect_to root_path,
-                error: 'Your E-Mail adress is already registered at OSEM. Please contact the admin if you want to attach your openSUSE Account to OSEM!'
+                error: 'Your E-Mail address is already registered at OSEM. Please contact the admin if you want to attach your openSUSE Account to OSEM!'
   end
 
   rescue_from UserDisabled do

app/helpers/application_helper.rb

@@ -69,7 +69,7 @@ module ApplicationHelper
     Comment.accessible_by(current_ability).find_since_last_login(user)
   end
 
-  # Recieves a PaperTrail::Version object
+  # Receives a PaperTrail::Version object
   # Outputs the list of attributes that were changed in the version (ignoring changes from one blank value to another)
   # Eg: If version.changeset = '{"title"=>[nil, "Premium"], "description"=>[nil, "Premium = Super cool"], "conference_id"=>[nil, 3]}'
   # Output will be 'title, description and conference'

lib/tasks/events_registrations.rake

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 namespace :events_registrations do
-  desc "Deletes dupicate entries"
+  desc "Deletes duplicate entries"
   task deduplicate: :environment do
     if ActiveRecord::Migrator.get_all_versions.include? 20160403214841
       duplicates = EventsRegistration.all.map { |er| er.id if er.valid? == false}.compact

spec/features/versions_spec.rb

@@ -376,7 +376,7 @@ feature 'Version' do
     EventsRegistration.create(registration: registration, event: event)
     EventsRegistration.first.update_attributes(attended: true)
     EventsRegistration.last.destroy
-    # Here registration is deleted to ensure the event registration related change still displays the asociated user's name
+    # Here registration is deleted to ensure the event registration related change still displays the associated user's name
     registration.destroy
 
     visit admin_revision_history_path

spec/models/conference_spec.rb

@@ -165,7 +165,7 @@ describe Conference do
   end
 
   describe '#get_submissions_data' do
-    it 'returns emtpy hash if there is no cfp or events' do
+    it 'returns empty hash if there is no cfp or events' do
       expect(subject.get_submissions_data).to eq []
     end