Fix Android crash when .build is called and Project name has spaces

Here is the crash:


-pre-compile:
     [exec] /Users/Shared/Jenkins/Home/workspace/native-wrapper/projects/Arabian/org/xwalk/core/R.java does not exist (The name of the project is "Arabian Nights"

BUILD FAILED
/Users/Shared/Jenkins/Library/Developer/sdk/tools/ant/build.xml:601: The following error occurred while executing this line:
/Users/Shared/Jenkins/Home/workspace/native-wrapper/projects/Arabian Nights_google/platforms/android/CordovaLib/xwalk_core_library/precompile.xml:52: exec returned: 1