first commit with basic setup for mongodb
working on pivot process
crosstab mostly working - have issue with num and string
basic crosstab in person model working; now trying to get it to work in dataset
added r script; added ruby script to call rscript and process into csv files
added paperclip; process file and save results when add file
mongo hash keys cannot have "."
fixed answers to be hash of arrays; added more data to crosstab (count, percents, chart)
changed from replacing "." in key with "_" to "|"; added onevar analysis method
added flags to question and answer; added map data to analysis
added data explore from a42 and updated to work with mongo format
added ability to select dataset to view; added dataset name to explore page
added sort to answers
got devise to work with mongo; added form to add datasets
added number formatting to charts/tables
added dataset warnings page; made dataset form available to all users
redid models to use embed instead of hashes; added shapeset model and code to tie dataset question to shapeset
added logo
updated deploy to work with mongo
fix deploy error