Don't push spinner.

Signed-off-by: Alberto Aguirre <alberto.aguirre@canonical.com>
Make sure g++4.9 is used for cross-compiling

Signed-off-by: Alberto Aguirre <alberto.aguirre@canonical.com>
More sanitization of deps list

Signed-off-by: Alberto Aguirre <alberto.aguirre@canonical.com>