Fewer api calls

[magma1447]

After #22 is implemented. Each cache page request at Geocaching.com will result in 3 requests to Project-GC.com (for subscribers), Get cachedata, get VGPS, get news/messages.

We could keep the old methods, but also make a new method that returns data from all three at once.

This of course needs server side changes.

[magma1447]

Currently two methods are called when loading a cache page.

• GetMyUsername
• GetCacheDataFromGccode

The future solution should be to call a method called GetData. This method will accept a json like the following.
{"GetUserData": true, "GetCacheDataFromGccode": "GC12345"}, "UpdateCacheInfo": {"lastUpdated": datetime, "lastFound": datetime}, "GetExistingVGPSLists": "GC12345"}

GetUserData is a replacement of GetMyUsername and includes membership data, unread news and unread PMs (#22).
Allowed arguments can easily be extented with for example GetSettings (#27) and GetFriends (#34).

[magma1447]

Assigned to me due to lack of server side support.

[magma1447]

I'll close this, cleaning up a bit. If it ever feels like an issue we can just attack it again.