Extended developing conventions

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>
Extended conventions

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>
Code formatter, removed some checkstyle warnings

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>
Updated license template

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>