Update to version 2.5 and .NET 4.5.
Update to if.build and standardize folder naming.

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rename : if-ws-google-maps-tests/HeatMaps.fs => IntelliFactory.WebSharper.Google.Maps.Tests/HeatMaps.fs
rename : if-ws-google-maps-tests/IntelliFactory.WebSharper.Google.Maps.Tests.fsproj => IntelliFactory.WebSharper.Google.Maps.Tests/IntelliFactory.WebSharper.Google.Maps.Tests.fsproj
rename : if-ws-google-maps-tests/Samples.fs => IntelliFactory.WebSharper.Google.Maps.Tests/Samples.fs
rename : if-ws-google-maps/Base.fs => IntelliFactory.WebSharper.Google.Maps/Base.fs
rename : if-ws-google-maps/Controls.fs => IntelliFactory.WebSharper.Google.Maps/Controls.fs
rename : if-ws-google-maps/Events.fs => IntelliFactory.WebSharper.Google.Maps/Events.fs
rename : if-ws-google-maps/Forward.fs => IntelliFactory.WebSharper.Google.Maps/Forward.fs
rename : if-ws-google-maps/IntelliFactory.WebSharper.Google.Maps.fsproj => IntelliFactory.WebSharper.Google.Maps/IntelliFactory.WebSharper.Google.Maps.fsproj
rename : if-ws-google-maps/MVC.fs => IntelliFactory.WebSharper.Google.Maps/MVC.fs
rename : if-ws-google-maps/Main.fs => IntelliFactory.WebSharper.Google.Maps/Main.fs
rename : if-ws-google-maps/Map.fs => IntelliFactory.WebSharper.Google.Maps/Map.fs
rename : if-ws-google-maps/MapTypes.fs => IntelliFactory.WebSharper.Google.Maps/MapTypes.fs
rename : if-ws-google-maps/Notation.fs => IntelliFactory.WebSharper.Google.Maps/Notation.fs
rename : if-ws-google-maps/Specification.fs => IntelliFactory.WebSharper.Google.Maps/Specification.fs
rename : if-ws-google-maps/StreetView.fs => IntelliFactory.WebSharper.Google.Maps/StreetView.fs
rename : if-ws-google-maps/Visualization.fs => IntelliFactory.WebSharper.Google.Maps/Visualization.fs
Rename solution file.

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rename : if-ws-google-maps.sln => IntelliFactory.WebSharper.Google.Maps.sln
Update to Google Maps API 3.13.