Reviewed by Eric Seidel.

        bugzilla-tool needs a new name
        https://bugs.webkit.org/show_bug.cgi?id=28459

        Rename bugzilla-tool to webkit-patch.  Also, rename some commands to
        make more sense with the new name.

        * Scripts/bugzilla-tool: Removed.
        * Scripts/webkit-patch: Added.
        * Scripts/webkit-tools-completion.sh:
        * Scripts/webkitpy/bugzilla_unittest.py:
        * Scripts/webkitpy/commands/download.py:
        * Scripts/webkitpy/commands/download_unittest.py:
        * Scripts/webkitpy/commands/early_warning_system.py:
        * Scripts/webkitpy/commands/queries.py:
        * Scripts/webkitpy/commands/queues.py:
        * Scripts/webkitpy/commands/queues_unittest.py:
        * Scripts/webkitpy/commands/upload.py:
        * Scripts/webkitpy/commands/upload_unittest.py:
        * Scripts/webkitpy/queueengine.py:
        * Scripts/webkitpy/steps/completerollout.py:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@52907 268f45cc-cd09-0410-ab3c-d52691b4dbfc