Hippie Ipsum: Themes (Wording and default)

[inkacee]

Themes umbenennen: "Hippie (german)", "Garten (german)" (NICHT: Garden!), "Startrek (german)"
No default, Hippie as default.

[hwacookie]

Could be done by any user as soon as the "Import Theme" feature is fully implemented.
See also Issue #9 .