EUTelGeo now throws exceptions if something is really wrong, also fixed typo filed to field
Further work on EUtelGeo exceptions as well as made getter const
Fixed unsigned and signed comparison, fixed order and indentation in eutelgeo header
Fixed various compiler warning
Merge pull request #146 from tbisanz/compilerWarnignFix

As no functionality is modified/removed I'll merge this, if any tests fail tomorrow I will undo/investigate,