Improved preferences window

Tweaked the preferences window to allow selection of a time.

Screenshot

Changelog (since v1.0)

• Update preferences window to use graphical date picker

Configurable countdown!

A huge thank you to @jacquealvesb, who implemented preferences to configure and save a countdown in #5

Screenshot

Changelog (since v0.1)

• Added toggle for 'Show Seconds'
• Migrated to Swift 2.0
• Drastically improve CPU/Energy usage
• Added zero-padding/leading zeros option
• Removed years from countdown
• Swift 4.2 compatibility (#4)
• Fixed bugs with negative times
• Countdown preferences (#5)

Aberystwyth Dissertation Deadline Countdown

This release is hardcoded to count down to 7th March 2015 12:00:00 (midday), which is the hand-in date for Aberystwyth University Computer Science Dissertation.

A future update (v0.2) will allow the date and title to be configurable.