Remove outdated deployment tip.
Fix N+1 on Shipment#to_package call to variant from Differentiator

On checkout/delivery page, a page refresh calls out to the
`Stock::Differentiator`, which loads a variant from each `inventory_unit`

The fix eliminates N+1 sql select for each variant.

fixes #5775
More icons [backend].

This adds all Glyphicons Halflings that ships with Bootstrap v3.3.1.0.
It also provides a more declarative way how to extend and map icons so
custom icons can be used.

fixes #5778
Relaxing acts_as_list dependency.

0.5.0 is currently the latest.

fixes #5779
require latest aal.
Fixes right admin sidebar text distortion.

Right admin sidebar has a fixed with of 170px, when adding elements to
this the text get distorted in many cases. English translations are
normally short while most other translations have much longer words.
Title should normally be set to display the full word.

fixes #5780
Moved the collapse_sidebar_link

So adding an item to the menu deface is doable again

fixes #5781
Remove n+1 lookup values on stock item exist SQL call

fixes #5774
Add OptionValue promotion rule.

Fixes #5666
allow for arb. promo adjustments to compete

fixes #5767