... Also do not crash dynare_config() if matlab is not able to download the X13 binary.

The input arguments (concatenated objects) should not be modified by
the overloaded method. Use a copy.

Created instead a new function dseries2struct, which can be called as:

>> o = dseries(randn(10,2));
>> s = o.struct();

Also

 + Added a routine to create a dseries object from a structure (if all
 required field are available).

 + Added the possibility to instantiate a dseries object from a structure.

Fixed problems in FORECAST output (option fvr)

All commands except series and composite.

Can initialise the trend in the one sided HP filter with the trend
estimated with the standard HP filter.

 - New class member tags

 - Member tags is a structure, initialized to empty.

 - Each user-defined field of this structure must be a vobs(o)*1 cell
   array (each element is associated to a variable).

 - To add a new tag name:

      >> o.tag('type')

 - To associate a tag value to a variable:

      >> o.tag('type', 'Consumption', 'Flow')

   the first argument is the tag name, the second argument is the name
   of the variable, the last argument is the value of the tag.