I thought it might be nice to be able to set a page title.
Mode has three potential values:
replace - overwrite the existing page title. This is the default.
append - add the value to the end of the existing title
prepend - add the value to the beginning of the existing title
glue is the string to use if the value is append or prepend.
display has two potential values:
none - meaning the viewHelper renders nothing in the template.
render - means that the tag will render it's children. This way you could use it in the context of an h1 tag like this: