recurso POST para alta de Cadenas
Added base files: README and requirements
Added Discovirtual spider files
Working on issue #164 of mgaitan/preciosa: add new model DescripcionAlternativa to have several descriptions for the same product.
Merge pull request #173 from pablocelayes/develop

agregamos paquetes para q ande bien PIL
Merge pull request #174 from hernantz/148_Realizar-scrapper-de-DiscoVirtual

148 realizar scrapper de disco virtual
Agrego scrapper para Jumbo A Casa
Migracion de datos que saca el 0 delantero de los upc de longitud mayor a 12.
Merge remote-tracking branch 'upstream/develop' into develop
Merge pull request #176 from pandres/develop

Datamigration que saca el 0 de adelante de los upc de longitud mayor a 12
primera version de Waltmark
arreglos finales walmark
Merge remote-tracking branch 'upstream/develop' into develop
Migracion de datos que saca todos los 0s delanteros de los upc.
Migracion de datos que saca todos los 0s delanteros de los upc.
Merge remote-tracking branch 'upstream/develop' into develop
Merge pull request #177 from pandres/develop

Quita todos los 0s delanteros del upc.
walmart se rompe a veces la web
Merge remote-tracking branch 'upstream/develop' into develop
Agrep script para hacer scrapper de Unico Supermercados (Rosario)