Upgrade Akka 2.1.2, close #968
Minor clean up
Let AHC compute Content-length, make byteArrayBody take an Aexpression
Rename sspBody into sspTemplateBody, fileBody into elTemplateBody, make ssp directly expose Session
Make AkkaDefaults extend AskSupport
Make BaseActor an abstract class as it has non abstract methods
Reduce java conversions garbage
Minor clean up
Support basicAuth configuration at HttpProtocolConfig level, close #1022
Add built-in extractor for dumping Session on request failure, close #1023
Minor clean up
Merge pull request #1025 from pdalpra/cleanup

Minor clean up
Minor clean up, make SessionDeltas explicit instead of using Tuple2[Int, Int]
Bring HtmlHelper.htmlEntityToInt back to life, used in VTD-XML extension
Remove param and queryParam versions that don't specify value, close #1026
Minor clean up
Fix build
Make check transform step Option => Option, close #1027
Minor clean up
Make Validation.sequence tailrec