Bump the version to 0.1.11 for publishing on CRAN
Fixed import NOTE in check; bumped the version to 0.1.11.1
Windows needs to use zi4.sty instead of inconsolata.sty
Added a complete testing framework for PivotalR

* Based on "testthat"
* Easy to use
* Can run the tests in two modes:
   - Interactive mode from R console
   - Automated mode from shell command line