JCLOUDS-286: Add a statement to install Chef using Omnibus
Remove BlobStore Map abstractions

These provide little end-user benefit and make evolving the core API
more difficult.  We deprecated these in 1.6.0.
[JCLOUDS-301] Reduce reflection overhead of Invokable.getParameters()

By caching the results from Invokable.getParameters(), this commit
improves request signing performance (GETs and PUTs) for S3 by >
3X. These performance problems were seen in production and diagnosed
using the YourKit profiler.
CloudStackApi should extend Closeable

Without that, you can't actually do view.unwrapApi(CloudStackApi.class).
JCLOUDS-303. unwrap should permit subtypes
JCLOUDS-303. unhook ApiMetadata type hierarchy from ec2
[JCLOUDS-302] Remove unnecessary String construction in HttpUtils
JCLOUDS-305. Disable S3 virtual host buckets for generic S3

Not all S3-compatible providers support virtual host buckets and thus
we should disable this feature by default.  Continue to enable virtual
host buckets for AWS-S3 which supports this although this feature
suffers from DNS settling issues.  Ran ran integration tests against
AWS-S3 and Scality using its S3 API.
JCLOUDS-304. Remove broken terremark providers
Fix EC2 live tests

This removes
org.jclouds.ec2.compute.functions.PasswordCredentialsFromWindowsInstanceLiveTest
due to there not being an easily detectable valid AMI for it to run,
and low interest in actually running it in the first place.
Fix aws-ec2 live tests

Involves some non-trivial reworking of EC2 security group
translation/binding, but it was necessary.

Still problems with a number of tests:
- org.jclouds.aws.ec2.compute.AWSEC2TemplateBuilderLiveTest#testTemplateBuilderWithLessRegions
- org.jclouds.ec2.compute.EC2TemplateBuilderLiveTest#testTemplateBuilderCanUseImageIdWithoutFetchingAllImages

Those seem to be failing because there's caching going on that they're
not expecting, but I could be wrong.

Also failing:
- org.jclouds.aws.ec2.features.PlacementGroupApiLiveTest in general
- org.jclouds.aws.ec2.features.SpotInstanceApiLiveTest - a couple tests
Add whitespace around keywords and braces
JCLOUDS-311. work around mixed versions in hpcloud-objectstorage regions
Fix assertEquals arg ordering in BaseSecurityGroupExtensionLiveTest
JCLOUDS-287. Add SecurityGroupExtension support to CloudStack.
JCLOUDS-331 - support specifying an imageChooser function in TemplateBuilder
Trivial: Remove unnecessary for loop in Atmos signing
Fix OpenStack Nova SecurityGroupExtension based on live tests

So there were a few problems, but the core ugly one is that what you
pass in for creating a rule allowing groups' access is not the same
thing you get back from a group with such a rule, which makes mapping
between the arguments and the output insanely painful. So now, well,
we do some insanely painful stuff.
JCLOUDS-334. Return correct status while creating containers in Swift.

BlobStore.createContainerInLocation is supposed to return True if the
container was newly created and False if the container already
existed. This commit makes that happen for Swift blobstores.
Skip failing testCreateBlobWithExpiry on Atmos