tracim_v2

Guénaël Muller d5ade3ee45 Merge branch 'develop' of github.com:tracim/tracim_backend into feature/614_file_content_endpoints		6 lat temu
..
__init__.py	add endpoint and tests for comments of contents	6 lat temu
comment_controller.py	rename exception for empty comment content	6 lat temu
file_controller.py	fix preview endpoint + test related	6 lat temu
html_document_controller.py	disallow empty raw_content for comment and empty label for others contents + tests	6 lat temu
threads_controller.py	disallow empty raw_content for comment and empty label for others contents + tests	6 lat temu