i3companion: Add switch user option to power button menu

Only works if logged in via GDM for now.
wacom: Tweak pad bindings

Space is really useless in GIMP since middle button drag does the same
thing, and Shift is far more useful - especially in Krita.
Add python script to balance the line length in some text

Useful to find the optimal newline placement in titles that have
wrapped to balance the line length, for instance:

"This is a long long title that is just ever so slightly longer than one
line."

Becomes:

"This is a long long title that is just
ever so slightly longer than one line."
Reverse EncFS rdiff backup script: Force removal of old incrementals

--remove-older-than X refuses to do anything if that would include
multiple incremental backups, which isn't what I want in a
non-interactive script. Add --force option to make it work.
Merge branch 'master' into temp-merge