admin: Remove non-existing filter

Fix apyrgio/synnefo#252
admin: Show projects owned by user on project list

Do not use itertools.chain since it can produce a list only once and
then it's exhausted. Instead, evaluate the list and store it.

Fix apyrgio/synnefo#255
admin: Show email/name properly

Fix apyrgio/synnefo#254
admin: Fix quota anchor in details
admin: Rename firstname to first_name

Fix apyrgio/synnefo#251
admin: Fix .tab-pane divs

Differentiate between quota and network panes by using "quota" /
"network" prefix.

Fix apyrgio/synnefo#221
admin: Remove stack labels from resource charts

In resource charts, the numbers can get very high, since TBs get
converted to bytes. This does not help the chart readability. Remove
these labels from all resource charts.

Fix apyrgio/synnefo#245
admin: Fix typo in mail modal
admin: Handle malicious queries

Do not respond to queries that ask for token/password.

Fix apyrgio/synnefo#259
admin: Show User ID in list/details

Fix apyrgio/synnefo#256
Merge branch 'feature-admin-demo-fixes' into feature-admin