use clearer icons for inventory template actions
Fix for Bug report#778

Reduce the bar's width from 170 to 150 so that they fit in the grid...
stereo sound functions
add melee stat to armour article
update invpaste_empty icon and allow apply empty
Merge pull request #905 from myk002/clarify_template_icons

Clarify template icons
Merge pull request #903 from GixG/patch-1

Fix for Bug report#778
fix inconsistent value
... depend
Merge branch 'master' of https://github.com/SupSuper/OpenXcom into oXc_kL

Conflicts:
	src/Basescape/SoldierInfoState.cpp
	src/Battlescape/InventoryState.cpp
	src/Battlescape/UnitInfoState.cpp
	src/Engine/Sound.cpp
	src/Engine/Sound.h
	src/Ufopaedia/ArticleStateArmor.cpp