comment: |
  <<AppConfig.appname/>> uses a subset of YAML for editing via Subversion.  
  Without worrying too much about what YAML actually is, here's recommended 
  <<AppConfig.appname/>> usage.

  Each .yaml file represents a single element (or prop) and is a series
  of key value pairs.

  Example:
  {{{
  name: Rabongo
  color: "blue"
  mood: 'sad'
  description: |
    I am a rabid mongoose.  You probably don't want me to bite you.
  }}}

  The file consists of a series of key value pairs.  The key never
  contains special characters, so it can be written normally; it's
  followed by a colon and a space.

  The value can be written several ways.  Values without
  special characters can be written inline, without quoting.

  If your value includes special characters, there are several ways it
  can be quoted.  Double quotes allow backslash escapes; to include a
  backslash or a double-quote in a double-quoted string, you must
  escape it.  ({{{"Like \"this\" \\-containing string does."}}}).

  Single quotes do not use backslash escapes.  You can escape a single
  quote in a single-quoted string by doubling it.
  ({{{'Like ''this'' does.'}}})

  Block values start with a | alone after the colon and space.  After
  that, the value is contained on any number of indented lines.  The
  indentation is not part of the value; it's only there to delimit
  it.  Special characters can be used freely in block literals.  Empty
  lines don't need the indentation to be included.  The value ends at
  the next non-indented line, which must start with a new key, or at
  the end of the file.