More checks on file content and catch exception.
Check nbColumns using a slot instead of using the property.
Use a workaround on the CVS loader to avoid a crash (do not set active
to False).
The new property "enabled" allows to define a lambda to dynamically enable/disable parameters.
Disabled parameters are not used in the uid, not exported to the command line and not visible in the interface.
We now call applyExpr before updateInternals is called (triggered by setupProjectFile and/or end of GraphModification).
So the input parameters expressions/connections are up-to-date (after applyExpr) when updateInternals will evaluate the input/output parameters.
Add possibilty to, while computing nodes:
add more nodes to the task manager,
edit, duplicate and remove nodes without breaking the tasks that are submitted
* store status file last modification time on NodeChunk
* ChunksMonitor: don't stop the underlying thread when changing chunks, only modify the list of monitored files + use a mutex for thread-safety
[flake8](http://flake8.pycqa.org) testing of https://github.com/alicevision/meshroom on Python 3.7.1
$ __flake8 . --count --select=E9,F63,F72,F82 --show-source --statistics__
```
./meshroom/core/node.py:461:34: F632 use ==/!= to compare str, bytes, and int literals
if v is not None and v is not '':
^
./meshroom/core/node.py:480:34: F632 use ==/!= to compare str, bytes, and int literals
if v is not None and v is not '':
^
2 F632 use ==/!= to compare str, bytes, and int literals
2
```
* add 'matchDescription' method on desc.Attribute.
* desc.ListAttribute/desc.GroupAttribute: 'matchDescription' ensure that value perfectly match element/group description. Enable recursive checking for child attributes.
* nodeFactory: detect DescriptionConflicts in pre-process pass by checking that serialized node's attributes perfectly match their descriptions
* CompatibilityNode.attributeDescFromNameAttribute: consider link expressions as valid values
* test_compatibility: more complete description conflicts unit testing
* add Node.globalStatus property: indicates the status of a Node based on the status of its own NodeChunks
* remove obsolete 'statusNames' and 'getStatus' methods
