Don't add index library to operator registry.
Bump for Hydra..
Remove error messages from posix/file.str
Bump version to 1.2.0 and use Java 7.
Don't depend on spx.
Spoofax/724
Update spoofax-libs.jar
Revert "Update spoofax-libs.jar"

This reverts commit 13a8446fff387e4d6b12025c5f3599e50a567cb8.
Merge branch 'java-bootstrap-no-index' into java-bootstrap