Largo 0.5.5.1

Maintenance release containing bug fixes for v0.5.5

Features

Fixed issue with related posts widget sometimes displaying current post (duplicating the display)
Fixed status notification issue when upgrading Largo
Reverted visual updates made in v0.5.5 to display post Updated Date by default. These are now available via a hook.
Fixed issue with class variables not correctly printing
Fixed front end errors displaying in comments.
Made twitter widget scrollable.
Minor code cleanup