Add a hash sign in front of 'project' tags received from
taskwarrior (i.e. where it is `project:something` it will
end up as #something in timewarrior.
Similarly, add a plus sign in front of tags: `+mytag`.
Only descriptions will be left as-is in translating from
taskwarrior to timewarrior.
This should make finding tags and projects specifically
much easier in timewarrior (e.g. for counting up the total
time spent on a single project).
Since I am striving for closer connection between my task management, my
mail suite and my calendar appointments, it makes sense to unify all
'office' tasks into the single office module instead of keeping
taskwarrior outside of it.