Fix ok-icon in membership widget

Fix ok-icon doesn't show in assign list
Use icon-font not bitmap-icon
Tweak CSS

Change-Id: I256a7dbb36da1da75a63a72a5bc7562d5777a2c5
Closes-Bug: 1354510
Change message from Warning to Error message

Message being changed is "Unable to retrieve floating IP pools"

Change-Id: Iccfcb623a81d5f1306db97cb399d9bc246bed211
Closes-bug: 1356493
Updated the documentation of the OPENSTACK_NEUTRON_NETWORK settings.

Change-Id: I5f39629fade22999f991500e68cd84edad0014bb
Removed edit icon hover effect

Also did some JS clean up.

Change-Id: I5b282fbee72413ad863562591c4e1e76b2579918
Closes-Bug: #1357589
Stop preloading Admin Volumes tabs

API calls can take a long time, no need to preload all the tabs before
they are needed.

Change-Id: I51eb0ca2cf288a75a7c43d7c010affebf33b8912
Closes-Bug: 1357186
Merge "Change message from Warning to Error message"
Merge "Stop preloading Admin Volumes tabs"
Merge "Removed edit icon hover effect"
Merge "Fix ok-icon in membership widget"
Merge "Updated the documentation of the OPENSTACK_NEUTRON_NETWORK settings."