Update JSON config example
Typo
Cookies handling cleanup

Move cookies init and injecting code to separate methods
Results: handle asserts
Report failed asserts in plain format
results: add a check in setAsserts()
results: add getFailedAsserts()
Asserts: exit code should equal number of failed assertions + debug log
Example config file: add an assert
Update CSV and JSON formatters
Use upper case for "class" names
Add unit tests for results and assets API
Merge branch 'master' into asserts
Merge pull request #121 from macbre/asserts

Introduce "metrics asserts"