Clean-up DialogError class

The DialogError class don't respect the Android coding style.

This patch convert indents to spaces, remove useless lines
in DialogError class.

Signed-off-by: Baptiste Robert <baptistex.robert@intel.com>
Clean-up TwitterError class

The TwitterError class don't respect the Android coding style.

This patch convert indents to spaces, remove useless lines
in TwitterError class.

This class is identical to DialogError, so one of them is useless.
As the other class, Javadoc is missing.

Signed-off-by: Baptiste Robert <baptistex.robert@intel.com>