* Added new dep: gorilla/csrf
* CSRF field in forms
* CSRF variable in commontemplatevariables
* New key for messages and user context
Please change EnableSecureCSRF to false when testing locally and don't
merge config/env.go with the changes
* Making the code Golint friendly
* No exported variables when not needed
* Same for functions
* Simplifying Templates variables with a form basic template variable
and a modelList basic template variable
* Adapted templates to new template variables
* use of .Models instead of model list
* use of .Form instead of modelform
* Small fix
* Small fix 2
Forgot $.Form
* Reverting templateDir as a var
* Add T field to template variables
* Remove languages.SetTranslationFromRequest
* Add Tfunc on handlers
* Remove T and Ts from template_functions
* Update templates
Change the templates to use the local Tfunc, instead of the global one.
Also changed the signature of the fields on template_variables.go, so that
they return a template.HTML to avoid escaping problems.
* Remove unnecessary variable
