Add a Travis setting file.
Add setting files for travis-CI and coverall.
Refactor code a little.
Remove 2 byte characters
Update .travis.yml

Add various Scala versions and JDK versions as target platforms.
Fix Travis-CI setting.
Add build command.
Add build command.
Fix error
Add command validation
Change CommandValidation's visibility
Update .travis.yml

Fix Travis-CI settings for enabling Coveralls.
Update ImageLoader.scala
Remove 2 byte characters.
Apply auto formatting.
Refactor test. Update project setting files.