Room search: search result should include the search pattern when it corresponds to a valid room alias or id.

+
Room search: Room preview should be used when user selects a public room that he did not join yet.

https://github.com/vector-im/vector-ios/issues/328
https://github.com/vector-im/vector-ios/issues/329

Vector/Views/RoomList/DirectoryRecentTableViewCell.m

@@ -18,10 +18,20 @@
 
 #import "PublicRoomsDirectoryDataSource.h"
 
+#import "VectorDesignValues.h"
+
 @implementation DirectoryRecentTableViewCell
 
 #pragma mark - Class methods
 
+- (void)awakeFromNib
+{
+    [super awakeFromNib];
+    
+    self.titleLabel.textColor = kVectorTextColorBlack;
+    self.descriptionLabel.textColor = kVectorTextColorGray;
+}
+
 - (void)render:(PublicRoomsDirectoryDataSource *)publicRoomsDirectoryDataSource
 {
     self.userInteractionEnabled = NO;