Implement items.stackInfo

Used to fetch trophy information.
Set is_sdbable to false in items.info

This hides the "Find sellers" tab, which currently does not work as it
requires economy.bestSDBs
Partial players.fullInfo implementation

Does not include player sprite sheets and activity update.
Stub avatar.getHistory

Used in changing outfits, which currently does not work. Returning an
empty history tells the user they have no outfits.
Merge pull request #4 from Whizy/newapis

New/modified methods to reduce the number of error reports
Add crossdomain.xml for Flash
Merge pull request #5 from Whizy/newapis

Add crossdomain.xml for Flash
Make error reports viewable
Save error reports and images to the reports dir

client.error now returns the error_id, which can be used in
client.attachErrorImage to attach the image to the report.
Send a slack message on error log creation.

The message includes the link to the full error log.
Stub activity related APIs

This stops errors from being sent when the player opens the "Updates"
window.
Include error image in report if it exists

Attached error image can be found at the bottom of an error report.
Merge pull request #6 from Whizy/errorreporting

Viewable error logs
Use config.reportDir when storing reports/images
Modify config to include reportDir
Better error handling

Now with stack traces.
Remove redundant code.
Merge pull request #8 from Whizy/errorreporting

 Error reporting improvements.
add stub for client.performance function

This function is called regularly by the client for non-godly players.
Merge pull request #9 from yelworc/client-performance

add stub for client.performance function