Added much documentation and TODO comments.
Added much documentation and TODO comments.

chrys87/orca-beep,GNOME/orca,pvagner/orca,GNOME/orca,pvagner/orca,GNOME/orca,chrys87/orca-beep,h4ck3rm1k3/orca-sonar,h4ck3rm1k3/orca-sonar,h4ck3rm1k3/orca-sonar,pvagner/orca,pvagner/orca,GNOME/orca,chrys87/orca-beep,chrys87/orca-beep