Versioning in Vtiger

Versioning semantics to be reviewed.

Currently migrations are bound to version number, So hotfix patch could not increment the version.

As per standard very post release should increment the release version. So to address this successfully we need to decouple the migration dependency with versioning.

Ref : http://vtiger-crm.2324883.n4.nabble.com/Vtigercrm-developers-Vtiger-CRM-7-3-0-Hotfix2-Released-td23593.html