Refactor code a little.
Add a Travis setting file.
Add build command.
Add setting files for travis-CI and coverall.
Merge pull request #8 from AI-comp/refactoring

Refactor code a little
Remove 2 byte characters
Update .travis.yml

Add various Scala versions and JDK versions as target platforms.
Add build command.
Merge branch 'buildcommand' of github.com:AI-comp/Terraforming into buildcommand
Fix Travis-CI setting.
Merge pull request #28 from AI-comp/buildcommand

Add build command.
Fix error
Add command validation
Change CommandValidation's visibility
Merge pull request #29 from AI-comp/command_validator

Add command validation
Apply auto formatting.
Apply Eclipse auto formatting.
Merge branch 'AutoFormatting' of github.com:AI-comp/Terraforming into AutoFormatting

Conflicts:
	src/main/scala/net/aicomp/entity/Field.scala
	src/main/scala/net/aicomp/scene/MainScene.scala