Added versionadded:: notice to new documentation topics

docs/topics/commands.rst

@@ -4,6 +4,8 @@
 Command line tool
 =================
 
+.. versionadded:: 0.10
+
 Scrapy is controlled through the ``scrapy`` command-line tool, to be referred
 here as the "Scrapy tool" to differentiate it from their sub-commands which we
 just call "commands", or "Scrapy commands".

docs/topics/feed-exports.rst

@@ -4,6 +4,8 @@
 Feed exports
 ============
 
+.. versionadded:: 0.10
+
 One of the most frequently required features when implementing scrapers is
 being able to store the scraped data properly and, quite often, that means
 generating a "export file" with the scraped data (commonly called "export

docs/topics/scrapyd.rst

@@ -4,6 +4,8 @@
 Scrapy Service (scrapyd)
 ========================
 
+.. versionadded:: 0.10
+
 Scrapy comes with a built-in service, called "Scrapyd", which allows you to
 deploy (aka. upload) your projects and control their spiders using a JSON web
 service.

docs/topics/ubuntu.rst

@@ -4,6 +4,8 @@
 Ubuntu packages
 ===============
 
+.. versionadded:: 0.10
+
 `Insophia`_ publishes apt-gettable packages which are generally fresher than
 those in Ubuntu, and more stable too since they're built periodically from
 `Scrapy Mercurial repositories`_ (stable & development) and so they contain the