release 0.14.5

[forrestguice]

• fixes bug "default alarm sound fails to play" (closes default alarm sound fails to play #593); adds fallback ringtones (rtttl).
• fixes bug "sounding/snoozing notification is unexpectedly canceled" (closes sounding/snoozing notification is unexpectedly canceled #594).
• fixes bugs in alarm dialog; dialog creates items of wrong type; dialog last selection not saved.
• fixes bug where alarm import is unable to select previously exported files (Save/Load settings [Feature request]  #588).
• adds export file selection (alarms/places/themes) using Storage Access Framework (api19+) (older devices still use ACTION_SEND) (Save/Load settings [Feature request]  #588).
• adds import warning dialog; alarm sounds and actions may revert to defaults (not retained) (Save/Load settings [Feature request]  #588).
• adds widget title %substitutions; %em (event time millis), %et (formatted event time), %eT (formatted event time w/ seconds), and %eA (event angle) (closes Two %substitutions for Sun Widgets [Feature request]  #599).