Unity after 4.3 changed this symbol to C and no C++ so there could be linker errors when trying to build the xcode project for the plugin. This should fix it
Remove unused 'extern'ed Unity view controlller
Merge branch 'master' into unityPost43Fix

* master:
  Fixed a small issue in ios builds and changed the download link for unityproject
  Update iOS libs to support latest core + store changes
  Update submodule - fix reward generation
Rebuild iOS bridge
Merge pull request #270 from soomla/unityPost43Fix

Remove redundant "extern" in iOS bridge