Design changes as per ticket
Biweekly wording
Formatting
Load minified CSS
Merge pull request #573 from humanmade/design

Design changes as per ticket
Update changelog
Update translations
Exit early if incompatible version of WordPress
WordPress Coding Standards
Fix cancel backup action
Regenerate minified JS
Regenerate minified CSS
Latest backdrop
reload the excludes filelist in the correct place when someone excludes a file
Remove unneede statements
Merge pull request #584 from humanmade/update-backdrop

Latest backdrop
Merge pull request #580 from humanmade/issue-580

Feedback from Steven re excludes
Merge pull request #556 from humanmade/issue-556

remove plugin fails on wp 3.5
correct text domain
Refactor the recursive filesize scanner

- Now caches filesize for all files and directories
- Moves locking into the caller so it can be accessed prior to shutdown
- `::get_site_size()` now correctly accounts for excluded files
- Extend `::filesize()` with the ability to skip excluded files when calculating a directories total size
- Use `::filesize()` in `::get_site_size` instead of duplicating logic