add missing array-extras module
refactor get tests to use echoecho urls
remove unused helper functions and assets
get tests with random delays for stress testing
Addressed issue in which the legend did not honor specified series marker style for shape. Fix #706
Fix #743. Addressed issue in which styles don't map correctly to a legend when series are styled using a global style object.
Fix #701 Addressed rounding issue in svg implementation. This bug surfaces in edge cases of the PieChart in the charts module.
Merge dev-master into topic branch.
Cleared up merge conflicts in charts HISTORY.
Fixed merge conflicts with charts HISTORY.
Add unit tests for #706 and #743.
Merge branch 'issue701' into sprint7
implement @sdesai feedback from pull #721

- missing commas in single `var` declaration
- `getUniqueEchoecho404` for symmetry
Merge pull request #721 from ekashida/get-tests

refactor get tests to use echoecho urls
Build files for charts and graphics.
Merge branch 'sprint7' into dev-master

Merge fixes for #701, #706 and #743 into dev-master.