Update Localizable.strings

i18n(ru): Date specific Russian from and to translations (PR #325)

UI/Scheduler/English.lproj/Localizable.strings

@@ -398,6 +398,10 @@
 "From" = "From";
 "To" = "To";
 
+/* dates */
+"DateFrom" = "From";
+"DateTo" = "To";
+
 /* validation errors */
 validate_notitle           = "No title is set, continue?";
 validate_invalid_startdate = "Incorrect startdate field!";
@@ -653,4 +657,4 @@ vtodo_class2 = "(Confidential task)";
 "hotkey_monthview" = "m";
 
 /* Hotkey to switch to multicolumn day view */
-"hotkey_multicolumndayview" = "c";
+"hotkey_multicolumndayview" = "c";