Fix: Api ssl verification

Merge pull request #3 from esteban0613/patch-1

Update Core.php

Add support to groups auth

Add support to groups auth. ('id_group' and 'group_token')

Fix a problem with editable attributes when using "where"

v0.6.03

Update Model.php

Support for update and create in customers

Support for update and create in customers :)

Add URL to Exception

v0.5.22

add URL to Exception

Improvements in core stability

v0.5.21

Improvements in core stability

Reduce the number of attempts

v0.5.20

Reduce attemps number

Add global params to Core

v0.5.19

Add global params to Core

Bugfix for Core Cache when use a WrappedModel

v0.5.18

bugfix for Core Cache when use a WrappedModel

Bugfix Core Cache System

v0.5.17

Update Core V1 Cache system