Closes #15.  Also added PolyglotterException that uses I18n.

As an aside, also updated Eclipse prefs and formatter to allow
undocumented empty blocks and line wrapping of assignments.  The need
for a comment on classes that inherit all implementation from the
superclass or marker interfaces seemed unwarranted.
Merge pull request #16 from jpav/master

Closes #15.  Also added PolyglotterException that uses I18n.