Tell robots to noindex,follow basewiki pages

Those pages show up in the basewiki on most ikiwiki sites and thus
really ought not to be indexed. We can let robots follow them though.

Signed-off-by: martin f. krafft <madduck@madduck.net>

doc/ikiwiki.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 This wiki is powered by [ikiwiki](http://ikiwiki.info/).
 [[!if test="enabled(version)"
      then="(Currently running version [[!version ]].)"

doc/ikiwiki/blog.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 [[!if test="enabled(inline)"
      then="This wiki has the inline plugin **enabled**."
      else="This wiki has the inline plugin **disabled**."]]

doc/ikiwiki/formatting.mdwn

@@ -1,4 +1,5 @@
 [[!meta title="Formatting wiki pages"]]
+[[!meta robots="noindex, follow"]]
 
 Text on this wiki is, by default, written in a form very close to how you
 might write text for an email message. This style of text formatting is

doc/ikiwiki/markdown.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 [Markdown](http://daringfireball.net/projects/markdown/)
 is a minimal markup language that resembles plain text as used in
 email messages. It is the markup language used by this wiki by default.

doc/ikiwiki/openid.mdwn

@@ -1,4 +1,5 @@
 [[!meta title="OpenID"]]
+[[!meta robots="noindex, follow"]]
 
 [[!if test="enabled(openid)"
      then="This wiki has OpenID **enabled**."

doc/ikiwiki/pagespec.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 To select a set of pages, such as pages that are locked, pages
 whose commit emails you want subscribe to, or pages to combine into a
 blog, the wiki uses a PageSpec. This is an expression that matches

doc/ikiwiki/preprocessordirective.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 Preprocessor directives are similar to a [[WikiLink]] in form, except they
 begin with `!` and may contain parameters. The general form is:
 

doc/ikiwiki/subpage.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 ikiwiki supports placing pages in a directory hierarchy. For example,
 this page, [[SubPage]] has some related pages placed under it, like
 [[SubPage/LinkingRules]]. This is a useful way to add some order to your

doc/ikiwiki/subpage/linkingrules.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 To link to or from a [[SubPage]], you can normally use a regular
 [[WikiLink]] that does not contain the name of the parent directory of
 the [[SubPage]]. Ikiwiki descends the directory hierarchy looking for a

doc/ikiwiki/wikilink.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 WikiLinks provide easy linking between pages of the wiki. To create a
 [[WikiLink]], just put the name of the page to link to in double brackets.
 For example `\[[WikiLink]]`.
@@ -32,4 +33,4 @@ in WikiLinks, and must replace spaces with underscores.  The newer
 syntax, enabled with the `prefix_directives` option in an ikiwiki
 setup file, prefixes directives with `!`, and thus does not prevent
 links with spaces.  Future versions of ikiwiki will turn this option
-on by default.
+on by default.

doc/templates.mdwn

@@ -1,3 +1,4 @@
+[[!meta robots="noindex, follow"]]
 [[!if test="enabled(template)"
 then="This wiki has templates **enabled**."
 else="This wiki has templates **disabled**."