ipalib.version: Add VENDOR_VERSION

This will allow us to make vendors' lives easier by embedding a
vendor tag to installation logs.

Part of the work for: https://fedorahosted.org/freeipa/ticket/4219

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipapython/version.py.in

@@ -20,6 +20,9 @@
 # The full version including strings
 VERSION="__VERSION__"
 
+# A fuller version including the vendor tag (e.g. 3.3.3-34.fc20)
+VENDOR_VERSION="__VENDOR_VERSION__"
+
 
 # Just the numeric portion of the version so one can do direct numeric
 # comparisons to see if the API is compatible.