Add debug-info command line option.

Allow user to get basic debug info, so the can paste it into and GitHub
issue.  Ruby(Version, engine, platform) MetricFu(Version, dependencies)
Instead of checking if it is a rails project, just include directories if they exist.
Fixing unit tests
Updating history.
Merge pull request #133 from bf4/ruby_parser_compatible_rails_bp

Update rbp to fully-ruby_parser-compatible version
Update History for release
Bump version to 4.4.1
Update checksum for 4.4.1
Better ERB errors. Output the template with the error.
Begin to separate template erb concerns
[Fix] Return valid line locations for code with no ast or nil nodes
Clean up line numbers code
Make AST Node wraper for line number s-expression nodes
Separate out sexp node dresser
Simplify line/method checking
LineNumbers parsing should rescue StandardError, not Exception
Update history
Merge pull request #136 from bf4/better_erb_errors

Better erb errors
Merge pull request #137 from bf4/cleanup_line_number_processing

Ensure valid line number locations. Cleanup line number processing, introduce SexpNode
Only use fake filesystem on mri

Fails on JRuby/Rbx