add install doc and adapt path for submodule

CMakeLists.txt

@@ -549,7 +549,7 @@ endif()
       PATTERN "*_debug.*" EXCLUDE)
     ADD_CUSTOM_COMMAND(
       TARGET ${PROJECT_NAME} POST_BUILD
-      COMMAND ruby ${CMAKE_SOURCE_DIR}/ruby/fixup/fixup.rb ${EXECUTABLE}
+      COMMAND ruby ${PROJECT_SOURCE_DIR}/ruby/fixup/fixup.rb ${EXECUTABLE}
       COMMENT "Fixing up the app bundle")
   ENDIF(APPLE)
 

install_packages_debian.txt

@@ -13,3 +13,9 @@ brew install vtk --with-qt --without-python --without-boost  --build-from-source
 sudo apt-get install libmgl-qt5
 sudo apt-get install libvtk5-dev
 sudo apt-get install libvtk5.8-qt4
+* ubuntu docker
+- cmake
+- git
+- g++
+- libvtk5-dev
+- libvtk5-qt4-dev

samples/tribuneStadium/arena_geometry.xml

 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 
-<geometry version="0.5" caption="arena_section" unit="m"
+<geometry version="0.8" caption="arena_section" unit="m"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:noNamespaceSchemaLocation="../../xsd/jps_geometry.xsd">
   <rooms>