Remove octicons

Signed-off-by: Dries Vints <dries.vints@gmail.com>
Work on class dependencies

Signed-off-by: Dries Vints <dries.vints@gmail.com>
Fix namespaces

Signed-off-by: Dries Vints <dries.vints@gmail.com>
Add a getter method for the backtrace depth

Signed-off-by: Dries Vints <dries.vints@gmail.com>
Add unit tests

Signed-off-by: Dries Vints <dries.vints@gmail.com>