Expose additional ServiceOffering properties

Adds 'active','bindable','url','info_url','unique_id','extra','documentation_url' to CloudServiceOffering
Adds 'description','free','public','extra','unique_id' to CloudServicePlan
Merge pull request #135 from knolleary/add_service_properties

Expose additional ServiceOffering properties
Updated READMEs for 1.0.2 changes.
Removed spurious text from README.
Released 1.0.2.
Bumping versions for next snapshot.