[asterisk-gui] file editor - colapsing on context

[Stephen Coles]

Now i have 25 users in users.conf editing bits in the file editor tab
becomes annoying too much scrolling

What about collapsing to contexts then when you click on a context it
expands to show you whats in it

That way 25 users would appear as 25 lines (ish), would would be a lot
more easier to expand the one i wanted instead of scrolling though them
all