Minor syntax changes.
Logging of byte data only if Logging is enabled in Defs.
Refactored account data update code in WidgetService and in
HomeFragment.

Last updated data is no longer stored in GlobalSettings. It is now
stored per user profile. When selecting a new user profile last fetched
data for that profile will be displayed in the status TextView.
Removed unused icons. Added hi-res refresh icon.
Added new alert icon. Changed refresh icon in Widget.
Updated texts on About fragment.
Renamed texts in preferences.
Updated history file
Updated Action exception class to hold ids to error messages.