iOS: update dependencies

Change-Id: Ic960162e46d3c0bf0f4da4adb6d756bf7a688382

Ring/Cartfile.resolved

-github "AliSoftware/Reusable" "4.1.0"
+github "AliSoftware/Reusable" "4.1.1"
 github "ReactiveX/RxSwift" "4.5.0"
 github "RxSwiftCommunity/RxDataSources" "3.1.0"
 github "RxSwiftCommunity/RxRealm" "0.7.7"
-github "SwiftyBeaver/SwiftyBeaver" "1.7.0"
-github "andreamazz/AMPopTip" "4.0.1"
-github "ashleymills/Reachability.swift" "v4.3.1"
+github "SwiftyBeaver/SwiftyBeaver" "1.9.1"
+github "andreamazz/AMPopTip" "4.5.0"
+github "ashleymills/Reachability.swift" "v5.0.0"
 github "gskbyte/GSKStretchyHeaderView" "1.0.4"
-github "optonaut/ActiveLabel.swift" "1.0.1"
+github "optonaut/ActiveLabel.swift" "1.1.0"
 github "pkluz/PKHUD" "5.3.0"
-github "realm/realm-cocoa" "v3.16.1"
+github "realm/realm-cocoa" "v3.21.0"
 github "stephencelis/SQLite.swift" "0.11.6"

Ring/Ring/Services/NetworkService.swift

@@ -42,7 +42,7 @@ class NetworkService {
     }()
 
     init() {
-        reachability = Reachability()
+        reachability = try? Reachability()
     }
 
     func monitorNetworkType() {