Use Node.js to build J2V8 on MacOS.

Builds J2V8 using a copy of node.js located in node/

Change-Id: I8105098c5180ade853d80c9dca9f5574e3504feb

Author: irbull

.travis.yml

@@ -4,3 +4,4 @@ compiler: clang
 before_install:
  - chmod -x build-node.sh
 install: sh ./build-node.sh
+script: sh ./buildJ2V8_macos.sh 

build-node.sh

@@ -3,3 +3,4 @@ cd node
 git checkout v5.9.1
 ./configure
 make
+cd ..

buildJ2V8_macos.sh

@@ -0,0 +1,3 @@
+cd jni
+clang++  -stdlib=libstdc++ -Iinclude -I../dep_includes_macosx -I../node/deps/v8/include -I../node/src -Wl,-force_load,../node/out/Release/libnode.a ../node/out/Release/libv8_libbase.a ../node/out/Release/libv8_libplatform.a ../node/out/Release/libv8_base.a ../node/out/Release/libv8_nosnapshot.a ../node/out/Release/libuv.a ../node/out/Release/libopenssl.a ../node/out/Release/libhttp_parser.a ../node/out/Release/libgtest.a ../node/out/Release/libzlib.a ../node/out/Release/libcares.a -shared -o libj2v8_macosx_x86_64.dylib com_eclipsesource_v8_V8Impl.cpp  -std=c++11 -Wwritable-strings
+