update CHANGELOG to mention the new subcommand
(issue
+* 0.3.3:
+ - new subcommand: list-italicangle
+ - several bugfixes
+
* 0.3.2 (2017-Oct-11):
- Increased self-testing now covering a bit more than half of the google fonts testsuite (more self-testing to be done on upcoming releases).
- overall refactoring of all test implementations so that they're all self-contained
