ability to override protocol methods (#45)

* open func to override

* Updated pod version to 1.2.2

Author: miklashevsky

Example/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - MSPeekCollectionViewDelegateImplementation (1.2.1)
+  - MSPeekCollectionViewDelegateImplementation (1.2.2)
 
 DEPENDENCIES:
   - MSPeekCollectionViewDelegateImplementation (from `../`)
@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  MSPeekCollectionViewDelegateImplementation: fcf03209da766882db0dc07c21d32981b7ba2fae
+  MSPeekCollectionViewDelegateImplementation: dc9c3aa660f03c4b2bb84edb1144c87ba562915e
 
 PODFILE CHECKSUM: 8d230cee08c8a8b7e62859eff8016277efe2311d
 

Example/Pods/Local Podspecs/MSPeekCollectionViewDelegateImplementation.podspec.json

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'MSPeekCollectionViewDelegateImplementation'
-  s.version          = '1.2.1'
+  s.version          = '1.2.2'
   s.summary          = 'A custom paging behavior that peeks the previous and next items in a collection view'
   s.swift_version    = '4.2'
 

Example/Pods/Manifest.lock

@@ -128,20 +128,20 @@ extension MSPeekCollectionViewDelegateImplementation: UICollectionViewDelegateFl
         currentScrollOffset = scrollView.contentOffset
     }
 
-    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
+    open func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
         return scrollDirection.size(for: itemLength(collectionView), defaultSize: collectionView.frame.size)
     }
 
-    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
+    open func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
         let insets = cellSpacing + cellPeekWidth
         return scrollDirection.edgeInsets(for: insets)
     }
 
-    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
+    open func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
         return 0
     }
 
-    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
+    open func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
         return cellSpacing
     }