Added humanized Date formatting (simple)

Fixed errors that would occur if undo was mixed with emptying the trash
Updated localizations
Added localized descriptions
Fixed #31 Database name is displayed, if none is given fallback is used

MacPass/NSDate+Humanized.m

@@ -0,0 +1,39 @@
+//
+//  NSDate+Humanized.m
+//  MacPass
+//
+//  Created by Michael Starke on 10.07.13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "NSDate+Humanized.h"
+
+@implementation NSDate (Humanized)
+
++ (NSString *)humanizedDate:(NSDate *)date {
+  return [date humanized];
+}
+
+- (NSString *)humanized {
+  NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
+  NSDateComponents *components = [calendar components:NSMinuteCalendarUnit|NSHourCalendarUnit|NSDayCalendarUnit fromDate:self toDate:[NSDate date] options:0];
+  if([components day] > 1) {
+    return [NSDateFormatter localizedStringFromDate:self
+                                          dateStyle:NSDateFormatterShortStyle
+                                          timeStyle:NSDateFormatterShortStyle];
+  }
+  if([components day] == 1) {
+    return NSLocalizedString(@"YESTERDAY", "Yesterday");
+  }
+  if([components hour] > 1) {
+    NSString *hourTemplate = NSLocalizedString(@"%ld_HOURS_AGO", "% Hours ago");
+    return [NSString stringWithFormat:hourTemplate, [components hour]];
+  }
+  NSInteger minutes = [components minute];
+  if(minutes > 1) {
+    NSString *minuteTemplate = NSLocalizedString(@"%ld_MINUTES_AGO", "% Minutes ago");
+    return [NSString stringWithFormat:minuteTemplate, minutes];
+  }
+  return NSLocalizedString(@"JUST_NOW", "Just now");
+}
+@end