Release of VEMLab v2.2

>>  From VEMLab v2.1 to VEMLab v2.2:

• Fix disp() in plot_and_ouput_options.m: disp(“Hello”) seems to work only in newer versions of MATLAB. So, it is changed to the standard MATLAB format disp(‘Hello’).
• Results that are postprocessed in the graphical user interface of GiD are now ordered in folders.
• Add option to plot deformed domain in MATLAB figures when using the LinearElastostatics module (see function “plot_and_ouput_options.m” located in the folder “config”).
• Add a function to read a meshfile having the domain type declared as “Custom”, which is useful for defining the meshfile manually or using an external mesh generator or using a customized version of the mesh generators available in VEMLab. (See example “Creating and using a custom meshfile” in the VEMLab Primer or details.)
• Add more details to the VEMLab Primer.