Update transifex URL

Author: jordimas

i18n_update.sh

@@ -13,7 +13,7 @@ cd i18n-temp
 for lang in en ast be br ca zh da nl eo fr gl de el_GR it pl ru sl es tl uk ro sk cs sv is lt km pt_PT pt_BR fa
 do
   SOURCE=downloaded.tmp
-  curl --user $USERNAME:$PASSWORD http://www.transifex.net/api/2/project/languagetool/resource/lt-for-android/translation/$lang/?file >strings-$lang.xml
+  curl --user $USERNAME:$PASSWORD https://www.transifex.com/api/2/project/languagetool/resource/lt-for-android/translation/$lang/?file >strings-$lang.xml
   localLang=$lang
   if [ $lang = 'pt_PT' ]; then
     # special case: if this is named pt_PT it never becomes active because we use "lang=xx" links