Wherever, according to the present law and practice, it is competent to advocate to the Court of Session a judgment (final or not final, as the case may be) of any sheriff or other inferior court or judge, it shall be competent, except as herein-after provided, to submit such judgment to the review of the Court of Session by appeal in the manner herein-after provided: Provided always, that it shall not be necessary for the appellant to find caution for expenses before taking or prosecuting his appeal.