Removed assertion failure actions for non critical errors

Example/Athlee-ImagePicker/Athlee-ImagePicker/Base.lproj/Main.storyboard

@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11542" systemVersion="16B2555" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="NrL-F7-tW6">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="16C67" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="NrL-F7-tW6">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11524"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
         <capability name="Aspect ratio constraints" minToolsVersion="5.1"/>
         <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
@@ -96,6 +96,7 @@
         <!--Image Picker Controller-->
         <scene sceneID="Ll4-eh-g9d">
             <objects>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="r4A-GL-Fcj" sceneMemberID="firstResponder"/>
                 <viewController id="mpd-HD-A2R" customClass="ImagePickerController" customModule="Athlee_ImagePicker" customModuleProvider="target" sceneMemberID="viewController">
                     <layoutGuides>
                         <viewControllerLayoutGuide type="top" id="vsh-dw-Kbu"/>
@@ -117,11 +118,11 @@
                                         <rect key="frame" x="0.0" y="28" width="375" height="44"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" tableViewCell="x6A-lt-OB3" id="TO5-Ps-EWU">
-                                            <rect key="frame" x="0.0" y="0.0" width="375" height="43.5"/>
+                                            <rect key="frame" x="0.0" y="0.0" width="375" height="43"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <subviews>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Title" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="Fbz-Ab-req">
-                                                    <rect key="frame" x="15" y="0.0" width="345" height="43.5"/>
+                                                    <rect key="frame" x="15" y="0.0" width="345" height="43"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="16"/>
                                                     <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -155,9 +156,8 @@
                         <outlet property="tableView" destination="hmI-Qr-xeP" id="2PQ-WZ-1fC"/>
                     </connections>
                 </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="r4A-GL-Fcj" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="135" y="1491"/>
+            <point key="canvasLocation" x="870" y="-400"/>
         </scene>
         <!--Select a photo-->
         <scene sceneID="AkM-OA-26p">
@@ -315,7 +315,7 @@
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="Ru6-hH-EWG" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="1683" y="1006.5"/>
+            <point key="canvasLocation" x="1682" y="922"/>
         </scene>
         <!--Selection View Controller-->
         <scene sceneID="F1Y-jP-aUQ">

Source/Capturable.swift

@@ -33,14 +33,14 @@ public protocol Capturable: class {
   /// A preview container view where the live camera record is shown.
   var previewViewContainer: UIView { get set }
 
-  /// A default capture notification observer. 
-  /// If you want to observe by yourself, 
-  /// implement `registerForNotifications` method. 
+  /// A default capture notification observer.
+  /// If you want to observe by yourself,
+  /// implement `registerForNotifications` method.
   /// And do not forget to unregister on deinit.
   var captureNotificationObserver: CaptureNotificationObserver<Self>? { get set }
 
-  /// 
-  /// Provides all necessary preparations for 
+  ///
+  /// Provides all necessary preparations for
   /// the capture session.
   ///
   func prepareForCapturing()
@@ -131,7 +131,7 @@ public extension Capturable {
         session.startRunning()
       }
     } catch {
-      assertionFailure("Unable to connect to the device input....")
+      debugPrint("Unable to connect to the device input...")
     }
 
     setFlashMode(.auto)
@@ -233,7 +233,7 @@ public extension Capturable {
 
       session?.commitConfiguration()
     } catch {
-      assertionFailure("Unable to connect to the device input....")
+      debugPrint("Unable to connect to the device input...")
     }
 
     session?.startRunning()
@@ -255,7 +255,7 @@ public extension Capturable {
         device.unlockForConfiguration()
       }
     } catch {
-      assertionFailure("Unable to lock device for configuration. Error: \(error)")
+      debugPrint("Unable to lock device for configuration. Error: \(error)")
       device?.flashMode = .off
       return
     }
@@ -288,7 +288,7 @@ public extension Capturable {
     do {
       try device?.lockForConfiguration()
     } catch {
-      assertionFailure("Unable to lock device for configuration. Error: \(error)")
+      debugPrint("Unable to lock device for configuration. Error: \(error)")
       return
     }
 
@@ -321,18 +321,18 @@ public extension Capturable {
       animations: {
         self.focusView!.alpha = 1.0
         self.focusView!.transform = CGAffineTransform(scaleX: 0.7, y: 0.7)
-      },
+    },
 
       completion: { _ in
         self.focusView!.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
         self.focusView!.alpha = 0
-      }
+    }
     )
   }
 
 }
 
-// MARK: - Internal helpers 
+// MARK: - Internal helpers
 
 internal extension Capturable {
   ///
@@ -351,7 +351,7 @@ internal extension Capturable {
   ///
   /// Stops and resumes current session depending on the foreground mode.
   ///
-  /// - parameter notification: A foregound entry notification. 
+  /// - parameter notification: A foregound entry notification.
   ///
   func willEnterForegroundNotification(_ notification: Notification) {
     let status = AVCaptureDevice.authorizationStatus(forMediaType: AVMediaTypeVideo)
@@ -363,4 +363,3 @@ internal extension Capturable {
     }
   }
 }
-