About two open bug reports for the dataframe package

[Julien Bect]

Hello Pascal,

I have recently provided some input on two ongoing issues concerning the 
dataframe package.

https://savannah.gnu.org/bugs/?38397 (problem in Octave 3.7.2+ only, for 
now...)
https://savannah.gnu.org/bugs/?32168 (long standing bug, exists in 
Octave 3.6.4 + dataframe 0.9.1)

Are you still maintaining the dataframe package ? do you need some help 
to make a bugfix release ?

@++
Julien