CSV datafiles: document it, autodetect extension
reporting: @series class
reporting: rename numElements as numel
reporting: @graph, @series, support syntax simplification
reporting: fix typo
reporting: @section: remove unsupported field
reporting: numel -> numElements, numPages
Changed behaviour of @dynSeries/size.

If called with a second input argument (dim), size returns the number of observations if dim==1 or
the number of variables if dim==2. Without this second argument, size returns the number of
observations and the number of variables.
Give dot access to the @dynSeries/size function.
Added unitary test for @dynSeries/size.
Added iscellofchar function.

Test if all the elements of a two dimensional cell array are strings.
Added the possibility to extract variables from dynSeries object using indices instead of variable names.

If ts is a dynSeries object containing variables A1, A2, A3, A4, A5, then the following syntaxes are equivalent:

ts{[1, 2, 5]}

ts{'A1','A2','A5'}

and will create a new dynSeries object made of variables A1, A2 and A5.
Added unitary test in dynSeries/subsref.
Build system for MEX/Octave: use Octave's LDFLAGS in the configure script

This will facilitate the detection of UMFPACK under Windows
Do not put -lumfpack in LIBS, rather use a special variable for it
reporting: @graph: issue warning if no series to plot
reporting: @graph: code cleanup
reporting: support end keyword for indexing
reporting: @series use size instead of numel
Fix test w.r.t. clean rules