android-daemon: Fix crash on cancelled QR-Code scanning
android-daemon: Remove no longer needed permissions
android-daemon: Remove orphaned image
android-daemon: Enable Cloud-uplink via Wi-Fi by default
daemon: Add option to enable externally managed connectivity state

If the option "net_managed" is set to yes. The daemon would not check for Internet-
connectivity. Instead, the management API and the NativeDaemon class provides
access to a method to enabled/disable connectivity.
android-daemon: Orphaned strings removed
android-daemon: Manage connectivity state within Android

The daemon now recognizes the state of a network using the Android API. If the
cloud uplink is set to Wi-Fi, no connection is established if the connection is metered.
android-daemon: Added sources of launcher icons and script to generate drawables
ShareBox: Add generated icons
Talkie: Add generated icons
Whisper: Add generated icons
Communicator: Add generated icons
Whisper: Add high-resolution icon for Wear reply action
Whisper: Generate a nickname identifier for unknown buddies
Whisper: Cancel notifications if messages window is opened or a wear device has replied
Merge pull request #83 from morgenroth/Style-and-workflow-improvement

Style and workflow improvement