Added swiftlint phase

.swiftlint.yml

@@ -0,0 +1,5 @@
+disabled_rules:
+  - line_length
+  - trailing_whitespace
+included:
+  - SwiftyButton/

SwiftyButton.xcodeproj/project.pbxproj

@@ -89,6 +89,7 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = C0F04E131BFA83F700E9925E /* Build configuration list for PBXNativeTarget "SwiftyButton" */;
 			buildPhases = (
+				C09D784C1DBD42AF0014565F /* ShellScript */,
 				C0F04E061BFA83F700E9925E /* Sources */,
 				C0F04E071BFA83F700E9925E /* Frameworks */,
 				C0F04E081BFA83F700E9925E /* Headers */,
@@ -145,6 +146,22 @@
 		};
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+		C09D784C1DBD42AF0014565F /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "if which swiftlint >/dev/null; then\n    swiftlint\nelse\n    echo \"warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint\"\nfi";
+		};
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
 		C0F04E061BFA83F700E9925E /* Sources */ = {
 			isa = PBXSourcesBuildPhase;

SwiftyButton/SwiftyButton.swift

@@ -123,8 +123,8 @@ open class SwiftyButton: UIButton {
         let highlightedImage = Utils.highlightedButtonImage(color: highlightedColor ?? buttonColor, shadowHeight: shadowHeight, shadowColor: shadowColor, cornerRadius: cornerRadius, buttonPressDepth: buttonPressDepth)
         let disabledImage = Utils.buttonImage(color: disabledButtonColor, shadowHeight: shadowHeight, shadowColor: disabledShadowColor, cornerRadius: cornerRadius)
 
-        setBackgroundImage(normalImage,      for: .normal)
+        setBackgroundImage(normalImage, for: .normal)
         setBackgroundImage(highlightedImage, for: .highlighted)
-        setBackgroundImage(disabledImage,    for: .disabled)
+        setBackgroundImage(disabledImage, for: .disabled)
     }
 }

SwiftyButton/SwiftyCustomContentButton.swift

@@ -12,7 +12,7 @@ open class SwiftyCustomContentButton: SwiftyButton {
 
     public let customContentView = UIView()
 
-    private var customContentViewTopConstraint:    NSLayoutConstraint?
+    private var customContentViewTopConstraint: NSLayoutConstraint?
     private var customContentViewBottomConstraint: NSLayoutConstraint?
 
     // @hack Intercept all touches on subviews