Begin refactoring
Update LICENSE and rename file
Prepare gemspec for 1.1 release
Factor out credential code into helper method
Renamed and simplified class
Rename method
Simplify and refactor
Merge refactoring branch
Adds support for HTTPS URIs.
Adds support for "dry run" mode.

No bookmarks are deleted in this mode - those that return 404
are just logged along with any other non-200 responses.
Merge pull request #8 from thelibrarian/code_refactoring_20131002

Two new features - HTTPS support and 'dry run' mode.
Remove unnecessary file
Refactor option parsing
Final refactoring
Merge branch 'code_refactoring_20131002'