Added fill element option in createSceneElement
Merge pull request #875 from gorco/photos

Added fill element option in createSceneElement
Fixes Travis CI.
Updates to the repo data model
Bug fixes in ZipUtils: streams were not getting closed properly
editor/desktop added back to the maven pipeline. Otherwise new project repo-builder and demo-launcher don't work. Three failing tests commented.
Added support for frames in demobuilder + other related stuff
Tool for managing image conversion through Im4Java (ImageMagick)
Preliminar work on the importer
FIrst version of the repo element creation utility - added as a new maven project
Monsters library
Monejos library
Freepik library nature 01
Old mokap icons library
Example library - for showcasing how the utility works only
Minor changes to mokap views that are probably not being used right now
Formatting issues
More commmented tests - just to get going for now
flattening RepoElement and RepoLibrary to make its storage in AppEngine easier
Minor fixes in exporter:
- Bug fix in use of game assets while exporting,
- pom minor optimization
- Adding support for zip input (+ current dir input)