Merge pull request #56 from philipturner/patch-10

Fix typo: plural of "typealias" is "typealiases"

Author: pvieito

PythonKit/PythonLibrary+Symbols.swift

@@ -15,7 +15,7 @@
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
-// Required Python typealias and constants.
+// Required Python typealiases and constants.
 //===----------------------------------------------------------------------===//
 
 @usableFromInline