* Added support for multi-line comments to the JLPPegParser grammar
implementation.
* Added a Java sample file.
* Updated test script to add convenience functions for the java test file and
for using a TracingParseRunner for parse runs.
* Added an option, `--css-file`, to allow the caller to specify their own css
file.
* Added basic logic to the Processor class to detect source file types and build
a parser and a generator for that source type. Support currently exists for
the following languages: C (.c, .h), C++ (.cpp, .c++, .hpp, .h++), Erlang
(.erl), Groovy (.groovy), Java (.java), JavaScript (.js).
