Updated sample data app's name (without special chars)

Signed-off-by: Pedro Nunes <pgh.nunes@gmail.com>
Minor bugfix - null GroupsCollection at clean startup

Signed-off-by: Pedro Nunes <pgh.nunes@gmail.com>
Changed default password to "meerkat"

Signed-off-by: Pedro Nunes <pgh.nunes@gmail.com>
Implemented activate/de-activate applications web service

Signed-off-by: Pedro Nunes <pgh.nunes@gmail.com>
Implemented webservice to enable/disable apps

Signed-off-by: Pedro Nunes <pgh.nunes@gmail.com>