Add command option to ignore error when collecting static files.
|Reported by:||Sévastien Fievet||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
A common case scenario is when using CachedStaticFilesStorage storage and a file that is missing.
The post-processing phase fails hard and exits abruptly, leaving the project in an incoherent state.
The goal is to add an option to collectstatic command in order to ignore errors raised on post-processing phase when files are missing.
The pacth will be mostly an adapted back-port of the pull-request #PR17 made for the legacy django-staticfiles app.