Add several useful functions to boto_elasticache state and execution modules. Clean up hard-to-parse multi-line log messages in boto_iam and boto_s3_bucket states
Users in publisher ACL and users and functions in the publisher ACL
blacklist now have matched in the following order:
1. Equality
2. Glob
3. Regex
Users in publisher ACL still not supported in systems without pwd python
module (Windows, any else?)
Otherwise, an invalid pkg atom such as generated by the following state:
```SaltStack
sys-apps/systemd:
pkg.installed:
- pkgs:
- sys-apps/systemd: '[curl, importd, nat]'
```
…would lead to this backtrace:
```
ID: sys-apps/systemd
Function: pkg.installed
Result: False
Comment: An exception occurred in this state: Traceback (most recent call last):
File "/usr/lib64/python2.7/site-packages/salt/state.py", line 1723, in call
**cdata['kwargs'])
File "/usr/lib64/python2.7/site-packages/salt/loader.py", line 1650, in wrapper
return f(*args, **kwargs)
File "/usr/lib64/python2.7/site-packages/salt/states/pkg.py", line 1062, in installed
**kwargs)
File "/usr/lib64/python2.7/site-packages/salt/states/pkg.py", line 454, in _find_install_targets
if not __salt__['pkg_resource.check_extra_requirements'](key, val):
File "/usr/lib64/python2.7/site-packages/salt/modules/pkg_resource.py", line 290, in check_extra_requirements
return __salt__['pkg.check_extra_requirements'](pkgname, pkgver)
File "/usr/lib64/python2.7/site-packages/salt/modules/ebuild.py", line 1059, in check_extra_requirements
cpv = _porttree().dbapi.xmatch('bestmatch-visible', atom)
File "/usr/lib64/python2.7/site-packages/portage/dbapi/porttree.py", line 835, in xmatch
mydep = dep_expand(origdep, mydb=self, settings=self.settings)
File "/usr/lib64/python2.7/site-packages/portage/proxy/objectproxy.py", line 31, in __call__
return result(*args, **kwargs)
File "/usr/lib64/python2.7/site-packages/portage/dbapi/dep_expand.py", line 35, in dep_expand
mydep = Atom(mydep, allow_repo=True)
File "/usr/lib64/python2.7/site-packages/portage/dep/__init__.py", line 1366, in __init__
use = _use_dep(use_str[1:-1].split(","), eapi_attrs)
File "/usr/lib64/python2.7/site-packages/portage/dep/__init__.py", line 855, in __init__
raise InvalidAtom(_("Invalid use dep: '%s'") % (x,))
InvalidAtom: Invalid use dep: ' importd'
Started: 21:53:35.925124
Duration: 999.249 ms
Changes:
```
