print.DFI not working properly when DFI wraps a matrix

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print.DFI function does not work properly when DFI object wraps a matrix instead of a data.frame

e.g. :

m <- matrix(1:10,nrow=5)
colnames(m) <- c('A','B')
D <- DFI(m)

> print(D)
NULL
<0 rows> (or 0-length row.names)

INDEXES:
A
B

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Fixed in v0.0.47 ea9932c