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

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

@@ -128,6 +128,7 @@
     "Error": "Napaka",
     "External File Versioning": "Zunanje beleženje različic datotek",
     "Failed Items": "Neuspeli predmeti",
+    "Failed to load file versions.": "Failed to load file versions.",
     "Failed to load ignore patterns.": "Prezrih vzorcev ni bilo mogoče naložiti.",
     "Failed to setup, retrying": "Nastavitev ni uspela, ponovni poskus",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Neuspeh povezav z IPv6 strežniki je pričakovan, če ni IPv6 povezljivost.",
@@ -373,6 +374,7 @@
     "The rate limit must be a non-negative number (0: no limit)": "Omejitev stopnje odzivnosti mora biti nenegativno število (0: brez omejitve)",
     "The rescan interval must be a non-negative number of seconds.": "Interval skeniranja mora biti pozitivna številka.",
     "There are no devices to share this folder with.": "Ni naprav za skupno rabo te mape.",
+    "There are no file versions to restore.": "There are no file versions to restore.",
     "There are no folders to share with this device.": "Ni map za skupno rabo s to napravo.",
     "They are retried automatically and will be synced when the error is resolved.": "Samodejno se poskuša znova in bo sinhronizirano, ko je napaka odpravljena.",
     "This Device": "Ta naprava",