fixed map filter
On the way
username regex fixed
Merge pull request #265 from projectcs13/sp9.sc3.filter_fix

fixed map filter
Merge pull request #266 from projectcs13/sp9.sc3.do_not_create_invalid_users

Sp9.sc3.do not create invalid users
Update _content_list.html.erb
Update _content_list.html.erb
Replace 'if not' with 'unless' in /views/vstreams
Use '.empty?' instead of '== []' in /vstreams
Refactor the Vstreams#index action
Refactor the Vstreams#show action
Fix so that the private/public check is consistent when editing a stream
Remove the 'correctBooleanFields' method inside the virtual stream controller
Refactor the Vstreams#create2 action
Merge pull request #274 from projectcs13/sp8.sc3.private_toggle_consistency_when_editing

Fix so that the private/public check is consistent when editing a stream
Refactor the Vstreams#fetch_datapoints action
Refactor the Vstreams#fetch_prediction action
Polling toggle set to be consistent with a stream's info
Merge pull request #276 from projectcs13/sp8.sc3.polling_toggle_consisten_with_stream

Polling toggle set to be consistent with a stream's info
fix map in edit window