gui, man, authors: Update docs, translations, and contributors

gui/default/assets/lang/lang-el.json

@@ -26,10 +26,12 @@
     "Anonymous Usage Reporting": "Ανώνυμα στοιχεία χρήσης",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "Η μορφή της αναφοράς ανώνυμων στοιχείων χρήσης έχει αλλάξει. Επιθυμείτε να μεταβείτε στη νέα μορφή;",
     "Are you sure you want to continue?": "Are you sure you want to continue?",
+    "Are you sure you want to override all remote changes?": "Are you sure you want to override all remote changes?",
     "Are you sure you want to permanently delete all these files?": "Are you sure you want to permanently delete all these files?",
     "Are you sure you want to remove device {%name%}?": "Σίγουρα επιθυμείτε να αφαιρέσετε τη συσκευή {{name}};",
     "Are you sure you want to remove folder {%label%}?": "Σίγουρα επιθυμείτε να αφαιρέσετε τον φάκελο {{label}};",
     "Are you sure you want to restore {%count%} files?": "Σίγουρα επιθυμείτε να επαναφέρετε {{count}} αρχεία;",
+    "Are you sure you want to revert all local changes?": "Are you sure you want to revert all local changes?",
     "Are you sure you want to upgrade?": "Σίγουρα επιθυμείτε να αναβαθμίσετε;",
     "Auto Accept": "Αυτόματη αποδοχή",
     "Automatic Crash Reporting": "Αυτόματη αναφορά σφαλμάτων",
@@ -40,6 +42,7 @@
     "Available debug logging facilities:": "Διαθέσιμες επιλογές μηνυμάτων αποσφαλμάτωσης:",
     "Be careful!": "Με προσοχή!",
     "Bugs": "Bugs",
+    "Cancel": "Cancel",
     "Changelog": "Πληροφορίες εκδόσεων",
     "Clean out after": "Εκκαθάριση μετά από",
     "Cleaning Versions": "Cleaning Versions",
@@ -68,6 +71,7 @@
     "Default Folder": "Default Folder",
     "Default Folder Path": "Προκαθορισμένη διαδρομή φακέλων",
     "Defaults": "Defaults",
+    "Delete": "Διαγραφή",
     "Delete Unexpected Items": "Delete Unexpected Items",
     "Deleted": "Διαγραμμένα",
     "Deselect All": "Αποεπιλογή όλων",