Update CHANGELOG and podspec.

Author: luispadron

CHANGELOG.md

@@ -1,3 +1,12 @@
+# Version 1.7.4
+
+Code optimization & Added missing test cases
+
+- Refactored test cases to also test UICircularProgressRingLayer.
+- Add missing test cases for new gradient members.
+- Add explicit typing to local variables in order to speed up compilation.
+- Add new Swift compiler flags to warn about long function/type inference compilation.
+
 # Version 1.7.3
 - Improved calculations for inner ring angle.
 	- Thanks to [@jeffro256](https://github.com/jeffro256) for committing.

UICircularProgressRing.podspec

@@ -2,7 +2,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "UICircularProgressRing"
-  s.version      = "1.7.3"
+  s.version      = "1.7.4"
   s.summary      = "A highly customizable circular progress bar for iOS written in Swift 3"
 
   s.description  = <<-DESC