scala-chart-idiomatic ConfidenceIntervals chart factory

- extracts the re-used newest series data into a separate member
- uses more functional / no side-effect dataset creation
- uses scala-chart XYDeviationChart factory to create the DeviationRenderer
Merge pull request #65 from wookietreiber/wip-confidence-interval-chart-factory

scala-chart-idiomatic ConfidenceIntervals chart factory
Update .travis.yml
Update .travis.yml
Update .travis.yml
Bumping .travis.yml to trigger build
Made the build crossVersion

No need for a 2.11 branch and travis should
still be able to build / publish
Merge pull request #67 from rozza/crossVersion

Made the build crossVersion
Merge pull request #68 from axel22/master

Make dsl elements serializable.
Merge pull request #69 from axel22/master

Making dsl internals transient.
Merge branch 'master' of github.com:scalameter/scalameter

Conflicts:
	src/main/scala/org/scalameter/reporting/ChartReporter.scala