Updated documentation

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RepoBrowser: Include submodules

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RepoBrowser: Allow to open submodule

This shows the revision of the submodule.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RepoBrowser: Show overlay for submodules

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RepoBrowser: Show log of folder not of submodule

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Merge branch 'repobrowser-submodule'

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RepoBrowser: Do not show 0 bytes for submodule

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>