Bugfix
Bugfix
Merge branch 'master' of github.com:foopg7725/droppy-new
fix normalizer
Merge branch 'master' of github.com:foopg7725/droppy-new
Merge branch 'master' of github.com:foopg7725/droppy-new
fix template
fix normalizer
fix template
Revert "fix normalizer"

This reverts commit 38cceb3f78070fcdbf521a893ca0af330a4fe68a.
Bugfix
fix normalizers
Throw exception if new username is includes 'preorder'.
Throw Exception if username is invalid
Fix bugs
Fix include.
Remove backup.
Remove bug tracking.
Add README.md