Bug 1115066 - Add more locales to Thunderbird start page redirect

Added locales: el, en-GB, eu

etc/httpd/global.conf

@@ -593,7 +593,7 @@ RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?thunderbird/(.*)/releasenotes(.*)$
 RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?thunderbird/(.*)/system-requirements(.*)$ http://website-archive.mozilla.org/www.mozilla.org/thunderbird_releasenotes/en-US/thunderbird/$2/system-requirements$3 [L,R=301]
 
 # bug 1103396 for en-US, bug 1115066 for other locales
-RewriteRule ^/(ca|cs|da|de|en-US|es-AR|es-ES|et|fr|fy-NL|gd|hr|hy-AM|is|id|it|ja|ko|nl|pl|pt-BR|pt-PT|ru|sk|sl|sq|sr|sv-SE|tr|uk|zh-TW)/thunderbird/release/start(/)?$ /b/$1/thunderbird/release/start$2 [L,PT]
+RewriteRule ^/(ca|cs|da|de|el|en-GB|en-US|es-AR|es-ES|et|eu|fr|fy-NL|gd|hr|hy-AM|id|is|it|ja|ko|nl|pl|pt-BR|pt-PT|ru|sk|sl|sq|sr|sv-SE|tr|uk|zh-TW)/thunderbird/release/start(/)?$ /b/$1/thunderbird/release/start$2 [L,PT]
 
 # bug 1090468
 RewriteRule ^/security/older-alerts\.html http://website-archive.mozilla.org/www.mozilla.org/security/security/older-alerts.html [L,R=301]