Dynamic reconfigure, gain min and max values

[roboticlemon]

Since we are using normal dynamic reconfigure the min and max values for each parameter are hard coded in the cfg file like so:
gen.add( "p" , double_t, 1, "Proportional gain.", 10.0, -100000, 100000).
With the 2nd last variable representing the minimum value and the last value representing the maximum value.

Since the default values are -100 000 to 100 000, controllers that otherwise need gain values orders of magnitude less can't be tuned using the dynamic reconfigure gui. Is there an elegant way we can pass the min and max values for each gain through the constructor (optionally) and then have them updated on the dynamic reconfigure server for visibility on clients? I can't seem to find a way for clients to modify these values themselves.