add homepage link so rubygems users can easily get to github
Merge pull request #15 from ping4/gemfile_link

add homepage link so rubygems users can easily get to github
debugger not ruby-debug !
Clear out Dictionary @row on save unless loaded

Otherwise causes bad behavior in #slice method
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Calling ::load on a loaded Dictionary is a no-op

Previously it was clearing out the row but not re-loading data, making
the dictionary appear empty.
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