Add source-map support
Fix error due to improperly prefixing banner

Prepend the banner to the SourceNode itself
Include source-map dependency

.. plus some minor cleanup as well
Workaround for brfs

Workaround for running browserify.
A new '_compileWithSourceMap' is not necessary
Support for passing include-search-path on cmdline
search more directories for include files
Merge pull request #45 from balajirrao/source-map

Source map support
Merge pull request #46 from balajirrao/include-dirs