Allow to group extended PTZ commands in sub menues.#3

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yablacky wants to merge 3 commits intoispysoftware:masterfrom yablacky:feature-ptz-submenues

+89-11

Commits on Oct 11, 2016

Allow to group extended PTZ commands in sub menues.
yablacky
committed

Commits on Oct 13, 2016

Fix more places where to care for PTZ submenues
yablacky
committed

Commits on Oct 21, 2016

impl. sub menues for PTZ Tool
yablacky
committed