Organised ionic assets and phonegap build config
Renamed NeoMAD functions to improve readability

Makes it clear when code is referring to ambiguous locations and
geographic location (long., lat.).
Simplified code in NeoMAD

As `parseLocation` is always true, and should never be false, the if block
can be simplified.
Improved readability for NeoMAD on Windows Phone 8
Standardised ionic README file
Fixed xamarin-mvvmcross project files

When code is check out for the first time, nuget packages are checkout out
to a folder called `packages` at the root of the solution.  Previously the
project assumed the nuget packages were in the
`PropertyCross.Core/packages` folder.
Prepared xamarin-mvvmcross package files