- Fixing API level in project.properties in android projects.
- BuildConfig and R files added to index for editor-android
Making bin/ and gen/ properly disappear from repo
Merge pull request #4 from jtorrente/master

- Fixing API level in project.properties in android projects.
Removed '@' in resource identifiers; added
'@' in FileResolver gamePaths to allow
engine-internal path prefixes.
Merge branch 'master' of github.com:e-ucm/ead
Fix tests after behavior modification in file resolver
Merge branch 'master' of github.com:e-ucm/ead into schemaio

Conflicts:
	engine/core/src/main/java/es/eucm/ead/engine/FileResolver.java
Fix tests