Ensure consistent use of "$@"

Using $@ without double-quotes causes word-splitting which is generally
not wanted.

Fixes basho/riak#471 (partially)
Add a deprecation notice onto search-cmd
User echoerr, drop yokozuna for branching
Merge pull request #482 from basho/feature/er/deprecate-search-cmd

Add a deprecation notice onto search-cmd
add/alter/del-group calls (plus usage fix for del-user)
RHS schema subs platform_log_dir, {level, advanced} -> hidden
usage statement
Group printing
Usage statement: add print-group/s
Fixed test for riak_schema
Merge pull request #488 from basho/jd-rhs

RHS schema subs platform_log_dir, {level, advanced} -> hidden
Bump lager_syslog dep to 2.0.3
Merge pull request #473 from basho/riak-issue-471

Ensure consistent use of "$@"
Bump lock-deps and Riak version for pre15
Merge pull request #489 from basho/jrd-security-role-bifurcation

Treat users and groups as distinct concepts
Bump lock file and version for riak 2.0.0pre16
Roll version and update lock file for pre17
Supply feedback from security enable/disable
Avoid an ugly RPC error if print-user or print-group are called with too many arguments
Merge pull request #501 from basho/jrd-security-output

Tweaks to improve user experience