For CI - use the new build option to reduce number of changed objects.

Close #1762.

.travis.yml

@@ -401,6 +401,7 @@ env:
     - numjobs=2
     - WEB=1
     - EMSCRIPTEN_SHARE_DATA=1
+    - EMSCRIPTEN_SHARE_JS=1
     - USE_CCACHE=1
     - CCACHE_SLOPPINESS=pch_defines,time_macros
     - CCACHE_COMPRESS=1

Rakefile

@@ -54,7 +54,7 @@ task :cmake do
   platform = 'native'
   build_options = ''
   # TODO: Need to find a way to automatically populate the array with all the Urho3D supported build options, at the moment it only contains those being used in CI
-  ['URHO3D_64BIT', 'URHO3D_LIB_TYPE', 'URHO3D_STATIC_RUNTIME', 'URHO3D_PCH', 'URHO3D_BINDINGS', 'URHO3D_OPENGL', 'URHO3D_D3D11', 'URHO3D_TESTING', 'URHO3D_TEST_TIMEOUT', 'URHO3D_UPDATE_SOURCE_TREE', 'URHO3D_TOOLS', 'URHO3D_DEPLOYMENT_TARGET', 'URHO3D_USE_LIB64_RPM', 'CMAKE_BUILD_TYPE', 'CMAKE_OSX_DEPLOYMENT_TARGET', 'IOS', 'IPHONEOS_DEPLOYMENT_TARGET', 'WIN32', 'MINGW', 'ANDROID', 'ANDROID_ABI', 'ANDROID_NATIVE_API_LEVEL', 'ANDROID_TOOLCHAIN_NAME', 'RPI', 'RPI_ABI', 'ARM', 'ARM_ABI_FLAGS', 'WEB', 'EMSCRIPTEN_SHARE_DATA', 'EMSCRIPTEN_EMRUN_BROWSER'].each { |var|
+  ['URHO3D_64BIT', 'URHO3D_LIB_TYPE', 'URHO3D_STATIC_RUNTIME', 'URHO3D_PCH', 'URHO3D_BINDINGS', 'URHO3D_OPENGL', 'URHO3D_D3D11', 'URHO3D_TESTING', 'URHO3D_TEST_TIMEOUT', 'URHO3D_UPDATE_SOURCE_TREE', 'URHO3D_TOOLS', 'URHO3D_DEPLOYMENT_TARGET', 'URHO3D_USE_LIB64_RPM', 'CMAKE_BUILD_TYPE', 'CMAKE_OSX_DEPLOYMENT_TARGET', 'IOS', 'IPHONEOS_DEPLOYMENT_TARGET', 'WIN32', 'MINGW', 'ANDROID', 'ANDROID_ABI', 'ANDROID_NATIVE_API_LEVEL', 'ANDROID_TOOLCHAIN_NAME', 'RPI', 'RPI_ABI', 'ARM', 'ARM_ABI_FLAGS', 'WEB', 'EMSCRIPTEN_SHARE_DATA', 'EMSCRIPTEN_SHARE_JS', 'EMSCRIPTEN_EMRUN_BROWSER'].each { |var|
     ARGV << "#{var}=\"#{ENV[var]}\"" if ENV[var] && !ARGV.find { |arg| /#{var}=/ =~ arg }
   }
   ARGV.each { |option|