Fix a bug when retrieving an integer property

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Prepare a chameleon environment to prepare test execution

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Check the behavior of Chameleon, BundleDeployer and reduce the strictness of the DirectoryMonitor

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>