Merge pull request #34 from vijaykiran/master

Update Jclouds version
Adding override for retention time on a per-image basis
Added ability to specify launch instance template as a string, for parameter replacement
Switching to jclouds 1.5.0-beta.11
[maven-release-plugin] prepare release jclouds-jenkins-2.3
[maven-release-plugin] prepare for next development iteration
Log when we are marking a single-use slave offline
Switching to jclouds 1.5.0 release
[maven-release-plugin] prepare release jclouds-jenkins-2.3.1
[maven-release-plugin] prepare for next development iteration
Fix for JENKINS-15970: Add forcible synchronized serial delay option
Merge pull request #35 from adamrofer/JENKINS-15970

Fix for JENKINS-15970: Add forcible synchronized serial delay option
Fixing case of BlobStorePublisher jelly
[FIXED JENKINS-16632] Catch AuthorizationException and don't echo the message, so we don't echo the creds.
[Fix JENKINS-16632] Don't print auth stack traces.

Really fix JENKINS-16632. We cannot print the AuthorizationException
stack trace because it contains private auth info and printing the stack
trace writes it to the Jenkins build console log. Instead catch
AuthorizationExceptions then create a new RuntimeException whose message
can be printed. Print the RuntimeException stack trace and a helpful
message that authorization failed.
Merge pull request #36 from cboylan/fix-JENKINS-16632

[Fix JENKINS-16632] Don't print auth stack traces.
Bump jclouds version to 1.5.7.

There is a bug in the old 1.5.0 version of jclouds that was used that
breaks compatibility with rackspace cloud files. Bump the version to be
compatible with rackspace cloud files.
Add dest path option to Blobstore.

Add a destination path option to Blobstore entries. This allows Jenkins
users to organize blobs in a hierarchy under the destination container.
Related to this do Jenkins build env variable interpolation in the
container and path fields.

Finally, allow for the path of a file relative to its workspace to be
appended to the path specified on a per project basis.

These changes make the jclouds blobstore an acceptable substitute for
the Jenkins SCP and FTP plugin.
Fix BlobStore jelly configs.

The BlobStore jelly configs were not able to properly save the
keepHierarchy boolean value. Move BlobStoreEntry jelly config into its
own file and use DataBoundConstructors to pass the field data in.
Update README with info on new blobstore options.

Add path and keep hierarchy info to the README Blobstore section.