Midgard2 core hotfix package

Midgard2-core (Mjolnir) hotfix package available for downloads.

Fixes include:

• Fix for strings being incorrectly escaped, when registered as view property. This fix is actually workaround for Libgda' routines which transform binary values to string ones.
• Minor fix for MidgardObject create() method, which in some particular cases (and very rarely) could create two objects identified by the same guid.

Hotfix is also available as binary packages.