Adding package.json

Setting up the repository for node packaging.
Adding gulp

Setting up the new build system for simplicity.
Initial testing

Adding the extract module as well as new failing tests for them.
Passing the first initial test now

At least we support the pid.
Adding support for latitude and longitude

All updates are added to the apartment data optimistically so there will
not be extra keys.
Adding title
Adding price
Adding size and bedrooms