includes the options for maximum search results per page, and the
maximum number of pages available before help text is shown, and
the next page button is disabled
If configured, we now check the IP address of the user signing up and, if they are a possible threat, we further reduce their number of allowed maximum builds to the configured value.
Instead of deleting a namespace synchronously as before, we now mark the namespace for deletion, disable it, and rename it. A worker then comes along and deletes the namespace in the background. This results in a *significantly* better user experience, as the namespace deletion operation now "completes" in under a second, where before it could take 10s of minutes at the worse.
Fixes https://jira.coreos.com/browse/QUAY-838
Instead of disabling repo names with periods in them, we simply disallow calls to the API when they are GET requests, whose path ends in a dot, and that do not have a referrer from the frontend.
