added el to proxy langs, added pete to translation.txt (#310)

lib/translations.py

@@ -20,7 +20,7 @@ PARTIAL_TRANSLATION = [
 ]
 
 PROXY_LANGS = [
-    "af", "az", "be", "bs", "ca", "cy", "eo",
+    "af", "az", "be", "bs", "ca", "cy", "el", "eo",
     "et", "fa", "fy", "he", "hr", "hy", "id", "is",
     "it", "ja", "kk", "lv", "mk", "nb", "nn",
     "ro", "ru", "sl", "pt-br", "uk", "uz",

share/translation.txt

@@ -21,7 +21,7 @@ Translated/improved/corrected by:
     * Finnish:      @Maxifi
     * French:       Igor Chubin, @daftaupe 
     * German:       Igor Chubin, @MAGICC (https://kthx.at)
-    * Greek:        Panayotis Vryonis
+    * Greek:        Panayotis Vryonis and @Petewg (on github)
     * Hebrew:       E.R.
     * Italian:      Diego Maniacco
     * Icelandic:    Óli G. @dvergur, Skúli Arnlaugsson @Arnlaugsson