The words 'Big tent' have proven to be confusing to people.
Their initial meaning was that project teams can join OpenStack
if they are "one of us" (as defined by sharing our mission and
our principles). However, misinformed people (or people who
maliciously choose to be misinformed) took it to mean that
there is an absence of rules, and anything and anyone can call
themselves an OpenStack project.
While most references to the 'big tent' were replaced over time
(with references to the 'project structure reform of 2014', or
'official projects' depending on what the words were actually
used for), some mentions still remained. This commit cleans them
up.
“It's a beautiful thing, the destruction of words.”
― George Orwell, 1984
Change-Id: I249ee50e1651997d4248b32a6e30d0737192f119
cd677e60f9