Towers rotate gradually, Projectiles move smoothly

[Nerucius]

• Finished Issue #161 (check link for notes)
• Finished Issue #162 (check link for notes)

[sdiaz7]

SelfDestroy code should be something like:

protected virtual void SelfDestroy()
{
    if (transform.parent == null)
        Destroy(gameObject);
    else
        Destroy(transform.parent.gameObject);
}

Calling destroy on parent object also removes all of its children.

[Nerucius]

Script change implemented at 1038649