When obtaining a list of Jira release versions the result isn't sorted properly if version contains dashes

In the VersionComparator everything before the first dash is ignored when comparing the versions.

Though the VersionComparatorTest contains the following testcases:

assertEquals(1, compare("1.1.1-RC1", "1.1.1-RC2"));
assertEquals(-1, compare("2.2.2", "1.1.1.2"));

The following Testcases would fail:

assertEquals(-1, compare("1.1.2-RC1", "1.1.1-RC2"));
assertEquals(-1, compare("2.2.2-RC1", "1.1.1-RC1"));
assertEquals(1, compare("FOO-1.1.1-RC1", "FOO-1.1.1-RC2"));