Fix dependencies for jruby and mri
Rename SaxHandler to OxHandler
Explicitly name llt-core dependencies in Gemfile
Refactor of parsing
Add NokogiriHandler for Sax parsing

In theory this should solve #3 - it does so in fact, however jruby seems
to contain a bug in regards to multi-threading. Still investigating if
that assertion is true and how it can be fixed.
Merge pull request #4 from latin-language-toolkit/sax_parsing_in_jruby

Sax parsing in jruby