increase deployment target

FoldingCell.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = 'FoldingCell'
-  s.version      = '3.1.1'
+  s.version      = '3.1.2'
   s.summary      = 'UITableViewCell with folding animation.'
   s.homepage     = 'https://github.com/Ramotion/folding-cell'
   s.license      = 'MIT'

FoldingCell/FoldingCell.xcodeproj/project.pbxproj

@@ -510,7 +510,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.4;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -558,7 +558,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.4;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";

README.md

@@ -14,7 +14,7 @@
 [![Donate](https://img.shields.io/badge/Donate-PayPal-blue.svg)](https://paypal.me/Ramotion)
 
 # Check this library on other platforms:
-<a href="https://github.com/Ramotion/folding-cell-android"> 
+<a href="https://github.com/Ramotion/folding-cell-android">
 <img src="https://github.com/ramotion/navigation-stack/raw/master/Android_Java@2x.png" width="178" height="81"></a>
 
 **Looking for developers for your project?**<br>
@@ -111,14 +111,14 @@ fileprivate struct C {
         }
 
         var duration = 0.0
-        if cellHeights[indexPath.row] == kCloseCellHeight { // open cell
-            cellHeights[indexPath.row] = kOpenCellHeight
-            cell.selectedAnimation(true, animated: true, completion: nil)
+        if cellIsCollapsed {
+            cellHeights[indexPath.row] = Const.openCellHeight
+            cell.unfold(true, animated: true, completion: nil)
             duration = 0.5
-        } else {// close cell
-            cellHeights[indexPath.row] = kCloseCellHeight
-            cell.selectedAnimation(false, animated: true, completion: nil)
-            duration = 1.1
+        } else {
+            cellHeights[indexPath.row] = Const.closeCellHeight
+            cell.unfold(false, animated: true, completion: nil)
+            duration = 0.8
         }
 
         UIView.animateWithDuration(duration, delay: 0, options: .CurveEaseOut, animations: { _ in