Migration Cleanup

[rbruhn]

After the last release there are some items that need to be cleaned up:

1. After checking some of the pages and logs, remove

"czim/file-handling": "dev-load-count-fix as 2.3.0",
 "czim/laravel-paperclip": "^5.0",

2. Drop database columns that were used with the above packages. Models too.
3. Clean up local and s3 directories:
   local image directories for logos, project resources, and expedition resources can be removed.
   S# directories: resources and project resources where renamed to site-assets and project-assets.
4. Clean up the config and remove old directories.