Some updates for SearchEngines #755

1. Mail.ru is using "windows-1251" encoding for now.
2. New search engine nigma.ru.
3. New search engine qip.ru.
4. Removed duplicated key "nova.rambler.ru"; the first is correct.
5. Added backlink field for Yandex Images.

Patch against svn1184:

diff -Ebaur piwik-svn1184.orig/core/DataFiles/SearchEngines.php piwik-svn1184/core/DataFiles/SearchEngines.php
--- piwik-svn1184.orig/core/DataFiles/SearchEngines.php 2009-06-02 00:02:34 +0400
+++ piwik-svn1184/core/DataFiles/SearchEngines.php  2009-06-05 22:19:12 +0400
@@ -827,7 +827,7 @@
       "www.maailm.com"         => array("maailm.com", "tekst"),

        // Mail.ru
-       "go.mail.ru"            => array("Mailru", "q"),
+       "go.mail.ru"            => array("Mailru", "q", "search?q={k}", "windows-1251"),

        // Mamma
        "mamma.com"         => array("Mamma", "query"),
@@ -907,6 +907,10 @@
        // Nifty
        "search.nifty.com"              => array("Nifty", "q"),

+       // Nigma
+       "www.nigma.ru"          => array("Nigma", "s", "index.php?s={k}"),
+       "nigma.ru"          => array("Nigma", "s", "index.php?s={k}"),
+
        // Nomade
        "ie4.nomade.fr"         => array("Nomade", "s"),
        "rechercher.nomade.aliceadsl.fr"=> array("Nomade (AliceADSL)", "s"),
@@ -945,6 +949,10 @@
        // Postami
        "www.postami.com"       => array("Postami", "query"),

+       // qip
+       "start.qip.ru"          => array("qip.ru", "query", "search?query={k}"),
+       "search.qip.ru"         => array("qip.ru", "query", "search?query={k}"),
+
        // Quick searches
        "data.quicksearches.net"    => array("QuickSearches", "q"),

@@ -958,7 +966,6 @@
        "nova.rambler.ru"           => array("Rambler", "query", "search?query={k}"), 
        "search.rambler.ru"         => array("Rambler", "words"),
        "www.rambler.ru"            => array("Rambler", "words"),
-       "nova.rambler.ru"           => array("Rambler", "q"),

        // Reacteur.com
        "www.reacteur.com"      => array("Reacteur", "kw"),
@@ -1147,7 +1154,7 @@
        "www.ya.ru"             => array("Yandex", "text"),

        // Yandex Images
-       "images.yandex.ru"      => array("Yandex Images","text"),
+       "images.yandex.ru"      => array("Yandex Images", "text", "yandsearch?text={k}"),

        // Yasni
        "www.yasni.de"                  => array("Yasni", "name"),

Attachment:
start.qip.ru.png

Attachment:
www.nigma.ru.png

(In [1190]) adding few search engines fixes #755