Modified the dependency check so both relaxation curve fitting and dispersion are checked.
The name of the functions were also changed to more generic.
This follows a post at: https://mail.gna.org/public/relax-devel/2009-02/msg00012.html (Message-id: <7f080ed10902171018o422b7dcdjed5f6abcd94df091@...>)
Authored by: semor 2009-02-17
Parent: [r8819]
Child: [r8821]
