Standardization of `require'

[corrideat]

I have two suggestions: 1) Since HTML5 incorporates a 'required' attribute, it might be a good idea to move the `required' validation option to be activated automatically whenever a global parameter of the same name is created. 2) Related to this, it could be useful to have a variable to use in templates whenever a field is required. This could help in adding an asterisk or in making these labels bold.

[powmedia]

This is something I've been thinking about too, particularly point 2 so will try to include this in the next version

[philfreo]

See also #165