Revert "Fix for PUB-501. Catch illegal argument exception and display error message in R."

This reverts commit abf75e26295880e530295b60b122eeb4fe1b9535.
Misuse of error reporting in CM - regression case.
Do not limit store view if called from json.
Handling of IllegalArgumentException in correct way by request server.
Merge branch 'master' of github.com:0xdata/h2o