Install agents using the frictionless agent install

This change adds logic for installing using the new curlbash style of
agent install. In order to support testing both the old and new styles
of install, we add a new agent role of "frictionless", which indicates
that the node should be installed in the new style. This simply causes
it not to download the PE tarball or generate answer files, and to curl
and run a script from the master (based on the platform tag).
Validate that we don't allow frictionless master, etc

Frictionless install is only supported for agent-only installs, so we
check that any frictionless node doesn't have any non-agent roles
specified.
(QE-613) Add `:catch_changes` to check for manifest resource changes

Many times when testing modules we apply puppet code twice in a row and
verify that the second run does not produce any resource changes to
verify that the resources are idempotent. The `:catch_changes` option
can be used to monitor for this result.
(QE-622) Beaker Does not Run Pre-suites in the Order Specified

- move sorting of test files into the option parser
- sort directores, keep ordering of items on command line
- added additional spec tests to confirm change
Merge pull request #95 from anodelman/test-order

(QE-622) Beaker Does not Run Pre-suites in the Order Specified
(QE-588) vcloud_pooled: undefined method `request_uri'

- ensure that a scheme is defined for the vcloud pooling api uri
- if no scheme is defined the uri returned is a simple uri object that
  does not support the 'request_uri' method
Merge pull request #85 from anodelman/fix-uri

(QE-588) vcloud_pooled: undefined method `request_uri'
expanded log level support

- support the following levels:
  5 debug
  4 verbose
  3 info
  2 notify
  1 warn
- each level reports itself plus the levels under it
- added 'info' level that reports in BLUE
- 'debug' level adds full stack traces
- todo: would like to review our current logging messages and see
        what needs to be assigned a new level
Merge pull request #94 from hunner/catch_changes

(QE-613) Add `:catch_changes` to check for manifest resource changes
Merge pull request #93 from nicklewis/frictionless-agent-install

Install agents using the frictionless agent install
Merge pull request #86 from anodelman/log-level

expanded log level support
creating beaker 1.3.0 gem

- adding support for --log-level
- bug fixes
Merge pull request #96 from anodelman/make-gem

creating beaker 1.3.0 gem
(QA-659) Pin beaker to rbvmomi 1.6.0

- pin to rbvmomi 1.6.0 until we can figure out what's broken with
  latest rbvmomi
Merge pull request #98 from anodelman/pin-rbvmomi

(QA-659) Pin beaker to rbvmomi 1.6.0
create 1.3.1 beaker gem

- pin rbvmomi to 1.6 to avoid bustage
Merge pull request #99 from anodelman/make-gem

create 1.3.1 beaker gem
Beaker uses netmask from config for vagrant boxes if present
Rubygems broke spec for rvm 1.8.7

- Temporary workound until https://github.com/rubygems/rubygems/pull/763 is merged
Merge pull request #102 from anodelman/pin-rubygems

Rubygems broke spec for rvm 1.8.7