Use readLines rather than readChar to avoid UTF issues
Use s rather than r to delimit R code blocks, because of github bug
Initial R generation of bootstrap tags
Bootstrap HTML generation in R
Fix css
Implement more features using R DOM generation

Addresses #2 #26 #32 #36. Implements bootstrap chunk options for hiding,
thumbnails, panel/buttons.
Remove unneeded data-toggle
Code and bootstrap style toggles using R
bootstrap_document function to use with rmarkdown package
Make the toc insert selector very specific

This fixes an issue if there are many child documents.
Fixes and documentation
Reoxygenize
Update examples
Add missing files