Main submenu and explorer now disable eachother when clicked
tweaks
Fix unicode error caused by ascii format string
Fix variable name typo
[fix] mysql support #541
added thousands comma to dashboard stats without mandating l10n or installation of more apps
updated menu footer to use space better, be clearer
tweak to small avatars
tweak to small avatar spacing
Merge pull request #831 from davecranwell/nicer-menu-footer

Updated menu footer to use space better, be clearer in how it works.
Changelog and release note for #831
Merge pull request #822 from takeflight/bug/815-unicode-widget-error

Fix unicode error with admin widgets
Merge pull request #830 from davecranwell/thousands-comma-dashboard

Added thousands comma to dashboard stats without mandating l10n or installation of more apps
Changelog and release note for #830
Merge pull request #812 from davecranwell/fix/submenu-explorer-interaction

Fixed submenu and explorer interaction to address #678
Changelog and release note for #812
Merge pull request #827 from Scopart/master

[fix] mysql support #541
Added @linibou to contributors
converted uses of django.contrib.messages to wagtail.wagtailadmin.messages to allow better styling and interactivity in notifications
Views cleanup