* gmmproc improvements:
- gmmproc: Allow () in property and signal docuemntation.
- gmmproc: Do not try to remove a common prefix from the
C enam values, if there is no common prefix.
- enum.pl: Allow whitespace in front of an enum typedef.
(Daniel Elstner)
- enum.pl: Fix an infinite loop.
* ObjectBase: Added connect_property_changed(),
as an alternative to use when the property proxies are not
available because GLIBMM_PROPERTIES_ENABLED is not defined.
(Murray Cumming)
* Value: When registering float parameters, use
G_MAXFLOAT as the minimum, instead of G_MINFLOAT.
Likewise for doubles.
(Oliver Nittka)
