Display assertions in reports, close #1057
Fix ComponentLibraryPath
Minor clean up
Unhide mute mode in usage message
Bring back deprecated launcher, will be removed in 2.2
Upgrade Akka 2.3.7, close #2363
CssExtractor.findAll should produce immutable IndexSeq, not ArrayBuffer, close #2364
format
Don't restrict formParams to POST, close #2366
Handle response bodies in recorder
Don't restrict the `bodies` folder to contain request bodies only
Suffix bodies filename with type rather than request id

That allows for better grouping of bodies for a certain request, in
file listing or shell completion.
Dump response bodies (disabled by default)
RawFileBody & ELFileBody can now be used for checks
Extend response bodies flag semantics to imply raw checks
Support base64-encoded content text (HAR 1.2)