Show either GB or MB depending on the amount of free disc space.
Show the latest change log once after the application has started.
The user can also access the full change log in the preferences.
Small formatting fixes.
Moved the changelog check into the onCreate method.
Made the change log dialog final.
Translated some new strings.
Removed the OK string. It is available internally.
Moved the style definition out of the changelog file and into the dialog
class. Also added a dark theme style.
Removed the yes and no strings. They are provided by the android system.
Updated polish translation.
Updated the changelog.
Merged branch program_guide.
Align the default values in the code with the ones in the preferences
screen. 
When the application was started for the very first time no icons were
shown and the dark theme was used even though the preferences displayed
something different.
Small string changes.
Updated the changelog and version.
Removed redundant empty lines.
Removed the separate preference screen for the two UI options.
Increased the android target version to 19.
Renamed some layout files.
The previous names were not consistent and didn't reflect the real
purpose.
Decreased the padding between the date and time in the program guide
header so it does not line break on smaller phones.