Drop 2.9, add 2.11
2.10 deprecations are 2.11 removals.
Post build publish
Secure vars need to be global
Only deploy jdk6 builds
Try different escaping for pubish arguments
Multiline text must aline. Change exposed credentials
Validate travis vars
Specify Scala version on deploy
Another attempt at hiding credentials
Scala version has to follow settings
Simplified env lookup