Use Rmd + Travis (#5)

* move episode files

* move image files

* [fix #2] convert episodes to Rmd

* fix setup link

* add chunk prep

* add data and generated figures

* add md episodes + generated figures to .gitignore

* add tic machinery

* add data files

* remove generated file

.Rbuildignore

@@ -0,0 +1,2 @@
+^tic\.R$
+^\.travis\.yml$