use thin for development (fixes local css compilation issue)
fix markup for updated bootstrap javascript
styling for roles management page
let managers see tax transaction history
change Bundler require to use asset group (for rails 3.2 update)
change Bundler require to use assets group (for Rails 3.2 update)
fix Facebook share button (was using deprecated methods)
redo new user signup from pledge page - fixes #5
fix comments (broken due to rails 3.2 update)
use rubygems.org paypal_adaptive not from local vendor folder
tests for pledge collect task
validation to ensure user cannot be a manager and trustee of a tax
fix pledge collect task (fixes #11)
migration to update data for new role system
minor styling
gitignore edit to ignore sass cache