v0.2.2.0

- Indicator arrows in graph

- Thinner price line

- Zoomable chart

- Added link to external charts (at bitcoincharts.com)

- Experimental section added

- Experimental feature: Only trade after trend switch (if starting the
bot between trend switches, wait until next swicth)

- Experimental feature: "The Crazy Ivan" - reverse the EMA-logic: The
bot will sell when it's supposed to buy, and buy when it's supposed to
sell!

- Lowered retry-rate when failed to fetch user info (retry after 1
minute instead of 10 seconds) to avoid hammering MtGox

- More robust handling of network problems (updates could stop after a
network loss) - bot should now update and resume within a minute

- Better handling when computer resumes from sleep (updates could stop
after sleep) - bot should now update and resume within a minute