.. enable auto expansion of .zip files to enable
users to download a batch export of their data
from TrainingPeaks in a web chart and import in
a single hit.
... first set of syntax error fixes to compile GC using Visual Studio 2015
... changes are encapsulated and tested to not conflict with GCC compilation
Note: there is no full compatibility - so GC is not building with MSVC2015 yet
.. so we can read/write zip files that can be opened
outside of GC. For example, when working with a file
store we want to write .json.zip that could be read
using winzip et al
