Include --recent app logs in errand output if app fails to start
Include --recent app logs in errand output if app fails to start

Fixes #104

cf-platform-eng/tile-generator,cf-platform-eng/tile-generator,cf-platform-eng/tile-generator,alex-slynko/tile-generator,alex-slynko/tile-generator,cf-platform-eng/tile-generator,alex-slynko/tile-generator,alex-slynko/tile-generator