Changed reactor includes for brevity
Moving data-processing directory to xdata-app-pack repo.
Moved timeline and timebar materials into example directories.
Moved several "non-core-Tangelo" example apps to xdata app pack repo.
Removed unused image files.
Merge branch 'trim-repo'
"tangelo stop" will timeout if the stop takes longer than 10 seconds (which usually indicates an error or other problem).

Closes #210.