Rename wxgeometrie.pyw to geophar.pyw

Fix a regression in tools/release.py.
[Framework] During release process, package name is read from version.py
Disable draft modules.

`Exercice trigonometrie` and `Exercice inequations produits`
are not finished and should be disabled before release.
Version 13.04
Fix regression in tools/release.py
Version 13.04.1