Added test for form_show_errors on FormHelper
Fixed a couple of example errors in docs: missing commas in the Layout examples, and the MultiField example. At the same time corrected small typos and other minor changes.
Merge branch 'dev' of git://github.com/meshy/django-crispy-forms into dev
Bug fix: Fixing form_show_errors behavior and test

* Errors specific to fields were not checking for form_show_errors condition.
* Test was not handling helper with reduced crispy tag syntax appropriately.
Merge branch 'patch-1' of git://github.com/jturnbull/django-crispy-forms into dev
Adding James Turnbull to CONTRIBUTORS
Checkbox fix Closing the label

We need to close the lable after the input and not the input within the label
Passing full context to the field rendering

Otherwise we don't have access to helper variables in the field rendering.
We might want to add some helper variable that determines field rendering
behavior.
Being able to set your own helper variables

Now the user can define custom helper variables that don't collide with
the official ones and use them in custom templates as he wishes.

Example:

`forms.py`
helper = FormHelper()
helper.show_labels = True

`field.html template`
{% if show_labels %}<label>...</label>{% endif %}
Refactoring |with_class filter into {% crispy_field %} tag

This way we can pass pairs of parameters to the this new tag and those will be
added to the field attributes:

We would turn our custom template into:

{% crispy_field field message field.message %}

And this would render:

<input message='whatever the message is' ...>
Adding twitter-bootstrap @kennethlove's templates from django-uni-form-contrib

Template packs will be part of django-crispy-forms core for easing
option switching.
Adding a CRISPY_TEMPLATE_PACK setting

To easily switch between available built-in packs or extra ones added.
By default bootstrap templates will be used from now on.
Adding a render_unmentioned_fields FormHelper attribute

Based on issue #6
Errors are not safe, avoiding XSS
Same goes for field.strict
Updating field.html bootstrap markup
Render action only if set
bootstrap multifield template is broken
Upgrading tests for uncoupled template packs
Turning UNIFORM_FAIL_SILENTLY setting into CRISPY_FAIL_SILENTLY

All django-crispy-forms settings start with CRISPY_*