fixed master switch for mha by adding repl user/pass

added sample master ip failover/online change scripts
Merge branch 'master' of github.com:jayjanssen/vagrant-percona
parameterized mha failover scripts
added sudo for mha user for vip management
try to patch cluster/client.pp for better deps
Merge pull request #2 from grypyrg/master

support for 'experimental' percona repos and 55 and 56
Update README.md
set $percona_server_version by default for backwards compatibility
Merge branch 'master' of github.com:jayjanssen/vagrant-percona into HEAD
more gracefully handle the case where ~/.aws_secrets does not exist
patch to make undef $experimental_repo work
pxc multi-region bootstrap works
remove yum update from repo -- yum update != apt-get update
Issue 3: move the ugly comment close to the code it talks about
Issue 3: use Jays way of defining the default
get_ip_cmd with virtualbox didn't work for me, adjusted a bit
disable query cache. It was already sort of disabled, but query_cache_type was on. I just set it to 0 by default
move sakila out of default misc module
added sysstat to misc module
pxc support 5.6