1.4.0

• Use periodSettings from the dataStore to determine which periods to display for each of the dataSetGroups (e.g. workflows). https://github.com/pepfar-datim/Global/issues/2253
• General refactoring
• Adds new header-bar that was introduced with DHIS2 2.24

The dataStore period settings should have the following format

{
    "MER Results": {
        "2017Q1": {
            "name": "January - March 2017",
            "start": "Fri Mar 31 2017 21:00:00 GMT+0200",
            "end": "Fri Apr 14 2017 21:00:00 GMT+0200"
        }
    },
    "MER Targets": {
        "2017Oct": {
            "name": "October 2017 - October 2018",
            "start": "Fri Mar 31 2017 21:00:00 GMT+0200",
            "end": "Fri Apr 14 2017 21:00:00 GMT+0200"
        },
        "2016Oct": {
            "name": "October 2016 - October 2017",
            "start": "Fri Mar 31 2017 21:00:00 GMT+0200",
            "end": "Fri Apr 14 2017 21:00:00 GMT+0200"
        }
    }
}