Added support for miscinfo in the stationselect page and improved timetable results page

[krnekhelesh]

This pull request implements the following,

• Updated to ubuntu-sdk-15.04 framework which brings in new animations and features in the Ubuntu SDK. The 15.04 framework will land in OTA-4 which is schedules for the 1st week of June.
• Transitioned to Ubuntu.Components 1.2 and QtQuick 2.4
• Added support for miscinfo in the stationselect page. This should show distances and station types correctly. Screenshot Fixes #204
• Also improved the timetable results page Screenshot which includes a partial fix for #207 and also fixed #208.
• With the transition to the Ubuntu.Components 1.2, the listitems used throughout the app have also being converted to the new listitems that have landed in the Ubuntu SDK with the exception of ListItem.ValueSelector.

Note: The following piece of code does not work after the transition to the 15.04 framework. However this code simply connects the pop() to the stationSelected signal. This has been manually added in the stationSelect.qml file to maintain functionality.

                    mainStack.currentPage.stationSelected.connect(function() {
                        mainStack.pop();
                    })