Change the EnterKey icon source to the "close" icon

This is a hint for the user that taping the enter key will hide the
keyboard.
Enable autoUpdate timer for SailfishOS

Prepare the application for use of the autoUpdate setting.
Add SettingsPage for SailfishOS port

This lets the user check enable periodic station updates, and clear the
recent station list.

Also added an About button here.
Remove commented out code
Added settings menu item to StationListPage.qml

Added menu and reordered other menu items. The menu item for the
currently active sort mode is disabled as well, as an indication to the
user about which view mode is active
Note that checkingInterval is deprecated
Relayout StationListView Pulldown menu
Updated italian translation
Updated Italian translation
Merge branch 'feature-settings-page' into development
Bump version to 0.9.0