QmlDesigner: Hotfix for older puppets

Older puppets crashes if we send enumerations so we convert them before.
This patch has to be reverted in master.

Change-Id: Id33e776616ea6e74c7b14799e3aed130c39f8fed
Hotfix: 3.1
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>
QmlDesigner: Revert bumping the puppet version

Since Qt Creator 3.1 will be released before Qt 5.3,
bumping the version number and enforcing to rebuild the puppet
creates a huge hurdle for end users.

Change-Id: Ic85a2ed315cf67b7d47bdfa492e6c5d2adf719d9
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>