storage app fix
Resolving Jira tickets for Store
sample ebooks added
Merge branch 'master' of https://github.com/wso2/enterprise-store
Tag Improvement - Stop code duplication (fixing  STORE-108)
subscription related code updated to validate user session
Merge branch 'master' of https://github.com/wso2/enterprise-store
subscription related code updated to validate user session
Merge remote-tracking branch 'upstream/master'