adding podspect

LFHeatMap.podspec

@@ -0,0 +1,18 @@
+Pod::Spec.new do |s|
+
+  s.name         = "LFHeatMap"
+  s.version      = "1.0"
+  s.summary      = "Extremely fast heat maps for iOS"
+  s.homepage     = "https://github.com/gpolak/LFHeatMap"
+  s.license      = { :type => "MIT", :file => "LICENSE" }
+
+  s.author       = { "George Polak" => "[email protected]" }
+
+  s.platform     = :ios, "5.0"
+
+  s.source       = { :git => "https://github.com/gpolak/LFHeatMap", :tag => "1.0" }
+
+  s.source_files = 'LFHeatMap'
+  s.requires_arc = true
+
+end