Shell interpreter doesn't work after installation

Shell interpreter doesn't work after installation because the installation script creates JSR folder named "shell" when the interpreter itself is named "sh" and is looking for folder named "sh"

I found 2 workarounds for this issue:

1) rename the JARs folder to "sh"

2) add path to the "shell" folder in env variable: ZEPPELIN_INTP_CLASSPATH_OVERRIDES

It looks like it is an easy code fix

Thanks