In progress: a resume method which better accommodates menus. Does not exit after module completion.
broke ground on module 1 of Intro to R course and added user_data/ to .gitignore for convenience
added more content to module 1 of Intro to R
added content outline for first couple of Intro to R modules -- in Intro to R directory
Modularizing menu logic, in progress
Merge remote-tracking branch 'swirldev/master'
resume.dev in withMenus.R

-allows continuation after completion of a module,
-should replace resume.default soon,
-decouples presentation of menus from internal technicalities,
-accommodates different course locations and formats, currently just csv
files in the project directory.
cleaned cruft in withMenus.R & fixed minor bug.
added expect_that style tests and keyphrases to answerTests.R
Added testthat to depends.
Fixed swirlfancy #28, failure to run initModule.R when restoring progress.
outline updated
pulled bills changes
a few more updates to mod1 of intro to R course, plus blank mod2 -- just prior to new dir structure
Copy data/Courses to inst/Courses
Remove data/Courses
Merge remote-tracking branch 'swirldev/master'
Remove previously-missed data/Courses/Intro to R
answer test with keyword "true" which always returns TRUE.
Updated Rbuildignore. Course csv files can't be excluded from build in their current location.