Added several functions
and arguments for <fact> action
added fact action implementation
saving and loading from dir
couple of print statements
print json with indent
fixed json.dumps for put request
fixed cluster folder removing
message printing
added check to fact data reading
added PUT method to fact handler
added test
separated handlers
added delete method

Conflicts:
	nailgun/nailgun/test/test_cluster_changes_handler.py
fixed pep8 problems added tests
full test for custom attributes handler and deployer

Conflicts:
	nailgun/nailgun/test/test_cluster_changes_handler.py
doc for 404 added
test for orchestrator handler and deployer are separated
direct deployment surpasses validation
some flake8 changes
minor fixes
deployment check specified
Fix for ip ranges control buttons layout
Merge pull request #1503 from Mirantis/prd-1632

Fix for ip ranges control buttons layout
last fixes for new deployment exception handling
debug to warning log
Merge pull request #1491 from Mirantis/PRD-1582-2

custom attributes disabled validation