add json metadata view for self/webpage, add rspec for self/webpage.rb
remove commented out code
move off old json
change from hash to object for metadata
update gem file to add version for link_thumbnailer
fix the nil class problem when getting +title,+description,+image_url with exisiting page
Merge remote-tracking branch 'henry/get_metadata_of_url_from_ajax_call'
update Gemfile.lock
Merge remote-tracking branch 'wagn/master' into check_empty_source_when_adding_claim