Cryto Coin Counter v1.12 released

Changes in 1.12:
- Better handling of API errors when getting latest prices, including retries on 502 errors. (I'm looking at you Crytpsy.)
- Other optimizations to the API code.

You can get the latest version here: http://cryptocoinapps.blogspot.ca/p/crypto-coin-counter.html

Plans for the next version:
- Allow for tracking coins not listed on supported exchanges.  (Already working in the development version.)
- Allow for the addition of exchanges that use a fairly standard API without requiring the release of a new spreadsheet version.

Wish list for future versions:
- Automatically load balances from exchanges with compatible APIs.
- Automatically load balances from mining pools with compatible APIs.
- Allow selection of which exchanges/coins to include in the pick lists.