Add author and license information for kstars/skyobjects/supernova.cpp
Introducing feature "What's Interesting..." A QML based test interface has been designed.
SkyObjListModel is a subclass of QAbstractListModel. Objects of SkyObjListModel can
represent any sky-object(any type). Currently test models for Planets, Stars, Galaxies,
Constellations, Star Clusters and Nebulae are used in class Modelmanager. The QML UI is
maintained by the WIView class.

The models are loaded everytime "What's Interesting..." is opened. It takes a long
time to load all the models. This is because currently the models checks through all
sky-objects. A reduced list will definitely be required.
Added file containing a list of the names and categories of deep-sky objects in CSV format.
This is the initial list from which further filtering will be done to find the "visible"
sky objects. This reduced list would help the sky-object models load faster.
Use the reduced list of sky objects --> kstars/data/initWIList.dat to load
the models for deep-sky objects(including stars). Loading of models occurs
faster now.
Modified WIView class to manage the listviews for category selection and sky-object selection.
Also changed the QML interface to get rid of the for-now-dormant details-view.
Use a better list of "Interesting" sky-objects. The list consists of
deep-sky objects, bright stars and constellations. A thank you to
Akarsh Simha for preparing this.
Use instances of newly added SkyObjItem class instead of SkyObject to create the models.
Also return the category of the clicked item in the list of sky-objects.
Details-view to open when a sky-object item is clicked from the list of sky objects.
This works for Stars, Constellations and Planets for now.
Show only sky objects which are 6 degrees above the horizon in the list.
Describe position in the sky for each skyobject item.
Show position of skyobjects on the details view of the QML user interface.
Slew map centre to the selected sky object from the list.
Display short description for planets in details view.
Make the text field having the introduction to the selected sky-object scrollable. No scrollbar though.
Minor changes to the details view part of the GUI.
Some more minor changes to the GUI. Modified the message denoting the position of the sky-object.
Add author and license information for kstars/skyobjects/supernova.cpp
Add option in details-view to view next sky-object.
Display magnitude information for sky objects in details-view
Minor fixup w.r.t. centering of skyobjects on skymap when user tries to view next skyobject from details-view.