srlTS 0.1.1

remove warning when ptrain = 1
Improve predict functionality, documentation for forecasting
UIHC Emergency Department arrivals data and vignette.
unit tests, improved coverage
Getting started vignette
Simple case studies vignette
Adding minor examples to roxygen, improving documentation

srlTS 0.1.0

add basic building blocks, readme
Added a NEWS.md file to track changes to the package.