fix UnboundLocalError: local variable 'message' referenced before assignment
Merge remote-tracking branch 'upstream/master'
fixed issue #74
fix issue #77
add Customer taxes support to shipping prices
Merge remote-tracking branch 'upstream/master'
refactored little bit

.. in the continuation of the https://github.com/diefenbach/django-lfs/commit/acb8b8b5035beacdd6add7f64e14380cfd8fa7fc
removed unused imports in lfs.checkout.forms
cache invalidations for properties; invalidate product cache when properties are changed or product property values are changed
Merge pull request #83 from baffolobill/patch-9

removed unused imports in lfs.checkout.forms
Merge remote-tracking branch 'upstream/master'
added timestamp field to addreses to allow addresses cleanup; added cleanup management commands; updated docs
Merge remote-tracking branch 'upstream/master'
typo in lfs.customer.views
Merge pull request #85 from baffolobill/patch-11

typo in lfs.customer.views
allow for longer e-mails (issue #19) - a missed field
Merge pull request #86 from baffolobill/patch-12

allow for longer e-mails (issue #19) - a missed field in the lfs.order.models.Order
Update models.py

Strings are immutable sequences
Merge pull request #88 from potar/patch-1

Update models.py
remove some raw sql statements in favour of django ORM - this way we should avoid some potential problems with memory usage and sql IN clause limits for a LFS instances with a big number of products