IvyVersionMatcher, ported from the android library: https://github.com/urbanairship/android-library/blob/35d6fa3dbca1aff116fd1bd89608a6f9df9b62d4/urbanairship-core/src/main/java/com/urbanairship/util/IvyVersionMatcher.java
IvyVersionMatcher, ported from the android library: https://github.com/urbanairship/android-library/blob/35d6fa3dbca1aff116fd1bd89608a6f9df9b62d4/urbanairship-core/src/main/java/com/urbanairship/util/IvyVersionMatcher.java