add R16B compatibility
Add a command to switch stanchion location setting. This command
assumes a use case where:
 1. stanchion fails (or kill the old one, ensure killed)
 2. decide a new stanchion with a brand new location (host,port)
 3. put a new stanchion location via `riak-cs-stanchion switch`
Also, users can confirm stanchion setting by `show` subcommand.
modify comments
Bump erlcloud dependency to 0.4.3
Set pb_backlog in Riak config for riak_test runs

Specify a pb_backlog of 256 in the Riak app.config for riak_test runs
to avoid spurious riak_test failures due to disconnected Riak pids.
Allow Riak CS admin resources to be used with OpenStack api

Fixes #666

The riak_cs_oos_rewrite module did not distinguish Riak CS admin
requests from normal object storage requests. Address this so that
things like user creation can work when using the OpenStack api.
add R15B01 compatibility
fix wrong eqc test
Merge remote-tracking branch 'origin/release/1.4' into develop
Merge branch 'feature/bump-erlcloud-version' into develop
Merge branch 'feature/riak_test_pb_backlog_increase' into develop
fix undef
Merge pull request #653 from basho/ku-r16

add R16B compatibility
dialyzer fix part 1/N (several points to be discussed)
dialyzer fix part 2/N
dialyzer fix 3/N: bring our dependencies
fix for both CS and CS-EE mode
BSD egrep understands numeric repitetion so well, while GNU egrep doesn't.
accept other choices than RIAK_CS_EE_DEPS=true
add warning message