Merge pull request #8 from ncarchedi/master

replace hardcoded code with knitr code chunks
Merge pull request #9 from ncarchedi/master

update description file
Merge pull request #10 from ncarchedi/master

update vignette in inst/doc
Merge pull request #11 from ncarchedi/master

final fixes for cran release of 0.1
Merge pull request #12 from ncarchedi/master

final fixes for 0.1
Made changes to DESCRIPTION file to reduce redundancy per Prof Ripley's suggestions. Added response to Prof Ripley's query as to usefulness of sla package. Staged these files prior to committing.
final tweaks to description file for cran resubmission