Added link to slides for section 01/intro
added 2 rgbif use caeses, working on a third
Merge branch 'master' of https://github.com/ropensci/workshops-norwich-2013-09
Added some of the reproducibility stuff
Merge branch 'master' of https://github.com/ropensci/workshops-norwich-2013-09
Updated to new eml_write syntax

* .title is now title
* file_description is now description
* col_meta and unit meta are now combined into a single 
metadata list, see the example above.
* eml$set is deprecated in favor of eml_config.  However, we just use the short-hand character string method to define creator in this example.
missing comma
fixed meta definition (typo)

(somehow editing in the github editor always seems to increase my typo rate...)
make year column a Date class
added taxize use cases and rbison use case
Added more knitr examples
Merged Carl's additions
Added placeholder for section 2
Added a knitr primer
Moved all the data files to a separate folder
fixed formatting issues
Finished file io
Added placeholders for plyr section
Added image for saving files table
added rvertnet use case, started new taxize use case