allow units to be passed for `minRam` and `minDisk`
Delete http method on entities.
Rename brooklynObject.getTagSupport() to tags()
Rename entityInternal.getFeedSupport() to feeds()
Mark getRebindSupport() as @Beta

- adds comment that this code should never be called or implemented
  directly by a user, and that it may change or be deleted in
  future versions without notice.
Avoid NPE in REST api deserialisation

- motivated by NPE in TaskSummary<init> for tags
remove string escaping of single quote in java (allowed for java but not for JS)
This closes #258
code review cleanup for minram / mindisk - correctly uses 1000 when converting to jclouds settings
This closes #265
This closes #267
This closes #269
This closes #271