Added side menu with event data.
Used UIResponder to easily throw a message to the root of the app.
Merge branch 'events-app' of github.com:xebia/xebicon-schedule-ios into events-app

# By Lammert Westerhoff
# Via Lammert Westerhoff
* 'events-app' of github.com:xebia/xebicon-schedule-ios:
  Add sponsors to info screen
  Add conditionally loading of data to all view controllers

Conflicts:
	XebiconSchedule.xcodeproj/project.pbxproj
	XebiconSchedule/Categories/Extensions.swift
	XebiconSchedule/XCSInfoViewController.m
	XebiconSchedule/XCSListViewController.m