Merge pull request #9 from j3parker/master

Thanks!
update info.rkt to state dependency on Racket 6.0
add example of 'decode' to docs
add options for ->html function
add link to Racket installers
improvements to ->html
fix & document wrap-hanging-quotes
fix typo in decode docs
modify parse behavior to discard newlines at the beginning of input file
fix get-template-for to read metas correctly for template key
remove reader-here-path & reader-mode from pollen source exports
don't look for template for source files without extension
better checks for get-template-for
keep reader-mode and reader-here-path available in parse context
enable metas in pollen/markdown by parsing markdown after metas
relocate renaming of reader-mode & reader-here-path
declare dependency on 'base' rather than 'racket'
add second tutorial
rebuild docs with second tutorial
typo