Added CocoaPod spec file.

MWPhotoBrowser.podspec

@@ -0,0 +1,44 @@
+Pod::Spec.new do |s|
+    s.name = 'MWPhotoBrowser'
+    s.version = '1.2.1'
+    s.license = 'MIT'
+    s.summary = 'A simple iOS photo browser with optional grid ' \
+                'view, captions and selections.'
+    s.description = 'MWPhotoBrowser can display one or more images by ' \
+                    'providing either UIImage objects, or URLs to files, ' \
+                    'web images or library assets. The photo browser ' \
+                    'handles the downloading and caching of photos from ' \
+                    'the web seamlessly. Photos can be zoomed and panned, ' \
+                    'and optional (customisable) captions can be  ' \
+                    'displayed. The browser can also be used to allow the ' \
+                    'user to select one or more photos using either the ' \
+                    'grid or main image view.'
+    s.screenshots = ['https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser1.png',
+                     'https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser2.png',
+                     'https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser3.png',
+                     'https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser4.png',
+                     'https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser5.png',
+                     'https://raw.github.com/mwaterfall/MWPhotoBrowser/' \
+                     'master/Preview/MWPhotoBrowser6.png']
+    s.homepage = 'https://github.com/mwaterfall/MWPhotoBrowser'
+    s.author = { 'Michael Waterfall' => '[email protected]' }
+    s.social_media_url = 'https://twitter.com/mwaterfall'
+    s.source = {
+        :git => 'https://github.com/mwaterfall/MWPhotoBrowser.git',
+        :tag => '1.2.1'
+    }
+    s.platform = :ios, '5.1.1'
+    s.source_files = 'MWPhotoBrowser/Classes/*.{h,m}'
+    s.resources = 'MWPhotoBrowser/MWPhotoBrowser.bundle'
+    s.requires_arc = true
+    s.frameworks = 'MessageUI', 'ImageIO', 'QuartzCore', 'AssetsLibrary'
+    s.dependency 'SDWebImage', '~> 3.5'
+    s.dependency 'MBProgressHUD'
+    s.dependency 'DACircularProgress'
+    s.dependency 'PSTCollectionView', '~> 1.2'
+end