Project file fixes

This largely uninteresting pull request covers the following areas:

* Fixed the template project files (hybrid and native), to include the right libs in header search paths. Otherwise, the project file generated by ```forceios create``` wouldn't work out of the box.
* Fixed the sample apps' project files to work standalone (I've run through the ```forceios samples``` process to validate the output).
* Updated the sample app classes to the latest.
* Updated the shared repo commit to the latest.
* Added a ```.gitignore``` file, and updated ```.npmignore``` to exclude files we don't want to bundle.