Gyuricska Milán / cloud

Added template to render the RequestFieldForm, and rendering the fields in a table. Adjust template request form's template to show dynamically added fields. Added a button to request list template which redirects to the request fields page.

URL names now follow the convention. Added EditableForm in request/forms.py. Its __init__ method adds the fields from RequestField model. The TemplateRequest inherit the EditableForm class.

Added views to list, edit, delete RequestField model objects.

Added a new model which holds data,that  needed for the editable form's fields.

Configurable scheduler method

See merge request !401

Added a variable in settings. It gets the value from an environment variable. The scheduler choose the method using this value.

Virtual CPU core max value now configurable

See merge request !400

Fix the html tag bug on network page

See merge request !398

Turned off the autoescape for the variable which cointains the html tag.

Add new environment variable (MAX_NODE_CPU_RAM) in settings/base.py. Using this variable in dashboard/forms.py as maximal value of cpu cores.

Easy setup

See merge request !397

commands: init command extended with default node, users, groups, permissions and detects kvm hardware acceleration presence.

* adds default node
* adds test groups: 'Administrators', 'Powerusers', 'Users'
* adds test users: 'admin', 'poweruser', 'user'
* adds KVM present notification for Administrator
* shares 'vm' network with groups

Upgrade Django 1.11 fix

See merge request !396

Upgrade to Django 1.11

See merge request !395

Suggestion to eleminate RequestContext: https://docs.djangoproject.com/en/1.11/ref/templates/upgrading/#django-template-loader

Rename operation

See merge request !389

dashboard, circle: register django autocomplete light and load static content for FilteredSelectMultiple widget on the proper way

Conflicts:
	circle/circle/settings/base.py

dashboard, circle, network, request: upgrade and rework autocompletion, remove deprecated 'pattern' from url patterns

Changes:
* Use argparse instead of optparse: https://docs.djangoproject.com/en/1.11/releases/1.10/#features-removed-in-1-10
* convert print to self.stdout.write(), Django documents suggest it: https://docs.djangoproject.com/en/1.11/howto/custom-management-commands/#module-django.core.management

django.db.models.field.subclassing.SubfieldBase removed: https://docs.djangoproject.com/en/1.11/releases/1.10/#features-removed-in-1-10
New field classes require to call full_clean() method on Models, because the to_python() din't call automatically.
Related docs: https://docs.djangoproject.com/en/1.11/releases/1.8/#subfieldbase

dashboard, vm: fix user handling i tests, new Origin type cannot implicit convert to str, fix redirect_chain in 2FA tests, importing vm operation in __init_.py is unnecessary and and brokes the application

circle, common, dashboard, firewall, request: fix deprecated context and cache handling, get_models, and max_length type for ConnectCommand name

Details:
* get_models removed: https://docs.djangoproject.com/en/1.11/releases/1.7/#introspecting-applications
* post_syncdb removed: https://docs.djangoproject.com/en/1.11/releases/1.9/#features-removed-in-1-9
Alternative: post_migrate: https://docs.djangoproject.com/en/1.11/ref/signals/#post-migrate
* django.contrib.contenttypes.generic removed: https://docs.djangoproject.com/en/1.11/releases/1.9/#features-removed-in-1-9
GenericForeignKey and GenericRelation moved to django.contrib.contenttypes.fields module