Refactor @uri in Page#initialize
Use #add_url in #takeover to add seed urls
Add referer and depth to Page if HTTP#fetch_pages has an error
Add #add_to_queue
restore cassettes
Better error handling
Merge pull request #25 from taganaka/better_rescue

Better rescue
Merge pull request #23 from tmaier/http

Add referer and depth to Page if HTTP#fetch_pages has an error
Merge pull request #22 from tmaier/add-url

Use #add_url in #takeover to add seed urls
Merge pull request #24 from tmaier/add_to_queue

Add #add_to_queue
Better http compression support
Merge pull request #26 from taganaka/gzip_deflate

Better http compression support