[FILEUPLOAD-232] started importing MimeUtility test case from http://svn.apache.org/repos/asf/geronimo/specs/tags/geronimo-javamail_1.4_spec-1.4/src/test/java/javax/mail/internet/MimeUtilityTest.java

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1457788 13f79535-47bb-0310-9956-ffa450edef68