Tempo 0.1.0

The first release.

• See every systemd user timer in one window: when it runs next, in words, and
  how its last ten runs went.
• Read the log of a timer and of its task, live, with only the problems if you
  want.
• Drop a script or a program on the window to make a timer from it: Tempo reads
  it without running it and says what to fix first.
• Choose when it runs and under which conditions, see the next runs and try the
  command once before saving.
• Get a desktop notification when a run fails, even when Tempo is closed.
• Run, pause, turn off, edit and delete the timers Tempo made; delete can be
  undone. Timers of the system are shown read-only, with the commands to stop
  them.
• English and French, light and dark.