Renames node_version_has_solaris_binary and nvm_iojs_version_has_solaris_binary to be prefixed with nvm_ so they do not show up in tab completion following the word "node".
set -u
$NVM_NO_ALIAS
Adds a default value for NVM_NO_ALIAS so that nvm ls does not error out when run in a bash nounset/-u (no unset vars) environment.
Sehrope Sarkuni