Have Travis build the Sample app with frameworks too

Author: jcanizales

.travis.yml

@@ -33,6 +33,9 @@ env:
     - SCHEME="Sample"
       WORKSPACE="Sample.xcworkspace" TEST_PATH="src/objective-c/examples/Sample" BUILD_ONLY="true"
       INTEROP_SERVER="false"
+    - SCHEME="Sample"
+      WORKSPACE="Sample.xcworkspace" TEST_PATH="src/objective-c/examples/Sample" BUILD_ONLY="true"
+      INTEROP_SERVER="false" FRAMEWORKS="YES"
     - SCHEME="SwiftSample"
       WORKSPACE="SwiftSample.xcworkspace" TEST_PATH="src/objective-c/examples/SwiftSample"
       BUILD_ONLY="true" INTEROP_SERVER="false"