[reltool] Improve error handling

OTP-9794

Stopping configuration (throw/catch) at first error instead of
continuing through all steps and then returning the error at the
end.

Start of reltool_server will no longer succeed if the configuration
causes an error.

reltool:get_status can only return {error,Reason} in the case where
the reltool_server has terminated. In all other cases it will return
{ok,Warnings}.

Bug fix in this commit:
* warnings are no longer duplicated in pop-up or return from reltool_server

0 files changed, 0 insertions, 0 deletions