[JENKINS-19990] Supports property files with non-ascii characters. This feature only works properly in Java 1.6, but Java 1.5 is still supported.
[FIXED JENKINS-19990] Tests for non-ascii properties.
[JENKINS-19990] Catch specific Exceptions.
[JENKINS-19990] LinkageError can be specified to NoSuchMethodError
Merge pull request #55 from ikedam/feature/JENKINS-19990_SupportNonasciiProperties

[JENKINS-19990] Support Non-ascii properties