menu action and empty slot for exporting project
zip project contents
implemented uploading zipped project files to cloud files
implemented uploading image files to cloud files if they don't already exist
Fix bug where local server starting is broken
bugfix: check if a node has an image before trying to upload it
merged dev into gns53
Merge pull request #27 from planctechnologies/gns53

GNS-53 export project to cloud
Merge pull request #102 from planctechnologies/dev

Fix bug where local server starting is broken