Update to 7.2.0

Closes ossu#398 and
closes ossu#399

Author: joshmhanson

CHANGELOG.md

@@ -6,6 +6,12 @@ This project adheres *in spirit* to [Semantic Versioning](http://semver.org/):
 - "MINOR" updates correspond to changing courses without changing the topics
 - "PATCH" updates correspond to aesthetic and non-essential additions/removals or changing order of classes for better progression
 
+## [7.2.0] 2017-04-28
+### Added
+- Software Testing course
+- Link to Stanford Lagunita's Algorithms: Design and Analysis
+- Added link to the section on parametric equations and polar coordinates from MIT's Single Variable Calculus course in order to properly prepare students for Multivariable Calculus
+
 ## [7.1.2] 2017-04-22
 ### Updated
 - Add link to Mega Project List in the introduction of the Projects section

README.md

@@ -77,7 +77,7 @@ just remember that you can't purchase success!
 
 # Curriculum
 
-**Curriculum version**: `7.1.2` (see [CHANGELOG](CHANGELOG.md))
+**Curriculum version**: `7.2.0` (see [CHANGELOG](CHANGELOG.md))
 
 - [Prerequisites](#prerequisites)
 - [Introduction to Computer Science](#introduction-to-computer-science)