Delete duplicated json files: they were move to build-tools but not delete from engine/schema
Updated viewport
Updating travis CI configuration to use android-19 API. Resolve build problems in #274
Merge pull request #271 from angeldelblanco/delete-duplicate-json

Delete duplicated json files:
Merge pull request #275 from imartinezortiz/travis-android-fix

Updating travis CI configuration to solve build problems in #274
Updating travis-ci config to use android SDK symbolic names instead of numeric id
Merge pull request #283 from imartinezortiz/travis-android-fix

Updating travis-ci config to use android SDK symbolic names
Configure maven-deploy version at root POM level
Renaming "all" maven profile to "default"
Fixing formatting issues
Renaming build-tools to build-tools-generators
Creating a support project for the building process according the recommended approach for using the java-formatter maven plugin in multimodule projects.
Adding project description in POM and fixing formatting issues in CI and SCM information.
Fixing parent POM relative path
Removing unnecesary profiles
Adding common maven parent project for android projects. This centralizes android maven configuration. Fixes #239
Fixing test-jar configuration
Fixing source-jar configuration
Moving jar-with-dependencies generation to the release profile
Adding Nexus OSS snapshot repository as pluginRepository