Fix #1337: imagelist multiple upload
Handle empty $_SERVER during logging when called from Nut
Merge pull request #1621 from jackmakiyama/imagelist

Fix #1337: imagelist multiple upload
Merge pull request #1623 from GawainLynch/hotfix/log-cli-undefined-index

Handle empty $_SERVER during logging when called from Nut
PinIt ported to new extension scheme
Merge pull request #1625 from GawainLynch/refactor/PinIt

PinIt ported to new extension scheme
Show just the icons in the "collapsed sidebar"
Minor changes to te sidebar..

- Use initial letter, instead of generic "files" icon in sidebar
- Make sure the sidebar collapses, when clicking ‘collapse’ by adding a
timer to the ‘:hover’

.. let’s see who notices, and if it rustles any jimmies. :-)
Updating CSS.
Fix for 'hoverable' in the sidebar.
Only show "extend" option in menu if we're allowed to see it.
Only allow people in "Extend" if they have the correct privileges.