Move image object creation into a method for easier subclassing.
Merge pull request #88 from isaacgrant/video-scubber-subclassing

Move image object creation into a method for easier subclassing.
Wrap the button in a span
I've tested this in EM:RAP and it still works as before
Merge pull request #89 from nburka/account-sessions-button-container

Wrap the button in a span
Add title field to admin attachment upload.

It is required in the database.
prepare for release of 2.1.17 | package party
Merge pull request #90 from gauthierm/attachment-admin-fixes

Add title field to admin attachment upload.
prepare for release of 2.1.18 | package party
Make it possible for layouts to override the html head entry set displayer.
Update copyright.
Merge pull request #92 from gauthierm/head-entry-set-displayer

Make it possible for layouts to override the html head entry set displayer
Add base dialog class that can be used to implement responsive JS dialogs.
Fix typo.
Remoev unused showBodyChildren() function and update updateLayout() function name.
Switch full_screen config to resize_mode and add a centering mode.
Only udpate positioning if the dialog is open in resize handler.
Move dialog header into scrollable element for dialogs.

This works much better for mobile.
Fix overzealous scroll-top behaviour.
Fix bad comment.
Add todo comments for animations.