implement upload-related support for open_basedir
Add new API method: `getFeedStats'

`getFeedStats' calls the new static function `api_get_feed_stats' to
return an array of real feeds of the following form:

    [{
       "first" : 1127,
       "unread" : 873,
       "last" : 15460,
       "title" : "Some feed",
       "id" : 31,
       "total" : 1513
    }]

where "first", "last", "total" are the first, last and total number of
articles in the feed.

This adds the ability to nntp-oriented clients to efficiently retrieve
an "active file" without having to resort to `getHeadlines(limit=-1)'
Merge pull request #147 from pedros/nnttrss_api_extensions

Add new API method: `getFeedStats`
bump api level
fix import_export plugin for open_basedir; add missing closing form tags to import_export and googleimport plugin
backend: add session validation check
add feed-icons placeholder index.html
block listing of several util directories; deny access to config.php
rebase translations
Revert "Add new API method: `getFeedStats'"

This reverts commit 0192ffe5a5f8254d723cf46e4bda839220191c2c.
having idiots report error 500 because their server is misconfigured is worse than having config.php wide open in case their php is not working
add support for plugins adding API methods
digest: use proper logging, update.php: fix typo
remove no_cache_incantation()
add cache-control: public to the login page so that firefox would bother making a thumbnail
remove label gradients
decode html entities in article title on import
don't distort resized images

If images have width/height attributes set and are reduced in size by max-width: auto, they look distorted. height: auto fixes this.
api: add score to getHeadlines/getArticle
ttrssZoom: fix image width